Getty Images
Now playing
02:15
Rubio on Cruz: Our immigration positions are very similar
MELBOURNE, FL - MARCH 14:  Republican presidential candidate Sen. Marco Rubio (R-FL) greets supporters while campaigning at That Little Restaurant March 14, 2016 in Melbourne, Florida. Florida holds its presidential primary tomorrow.  (Photo by Win McNamee/Getty Images)
Win McNamee/Getty Images
MELBOURNE, FL - MARCH 14: Republican presidential candidate Sen. Marco Rubio (R-FL) greets supporters while campaigning at That Little Restaurant March 14, 2016 in Melbourne, Florida. Florida holds its presidential primary tomorrow. (Photo by Win McNamee/Getty Images)
Now playing
01:27
CNN projection: Rubio wins Florida primary
Sen. Marco Rubio (R-FL) (left) confers with Sen. John McCain (R-AZ) (right) as U.S. Ambassador to Syria Robert Ford testifies before the Senate Foreign Relations Committee October 31, 2013 in Washington, D.C.
Win McNamee/Getty Images
Sen. Marco Rubio (R-FL) (left) confers with Sen. John McCain (R-AZ) (right) as U.S. Ambassador to Syria Robert Ford testifies before the Senate Foreign Relations Committee October 31, 2013 in Washington, D.C.
Now playing
03:04
Rubio, McCain test Trump's down ballot impact
WASHINGTON, DC - JANUARY 28:  U.S. Sen. Marco Rubio (R-FL) listens during a news conference on a comprehensive immigration reform framework January 28, 2013 on Capitol Hill in Washington, DC. A group of bipartisan senate members have reached to a deal of outlines to reform the nation immigration laws that will provide a pathway for the 11 million illegal immigrants in the country to citizenship.  (Photo by Alex Wong/Getty Images)
Getty Images
WASHINGTON, DC - JANUARY 28: U.S. Sen. Marco Rubio (R-FL) listens during a news conference on a comprehensive immigration reform framework January 28, 2013 on Capitol Hill in Washington, DC. A group of bipartisan senate members have reached to a deal of outlines to reform the nation immigration laws that will provide a pathway for the 11 million illegal immigrants in the country to citizenship. (Photo by Alex Wong/Getty Images)
Now playing
05:52
Rubio: Why I'm against Collins gun control amendment
Sen. John McCain (R-AZ), Sen. Charles Schumer (D-NY), Sen. Marco Rubio (R-FL), Senate Majority Whip Sen. Richard Durbin (D-IL), and Sen. Robert Menendez (D-NJ) share a moment during a news conference on a comprehensive immigration reform framework Monday.
Alex Wong/Getty Images
Sen. John McCain (R-AZ), Sen. Charles Schumer (D-NY), Sen. Marco Rubio (R-FL), Senate Majority Whip Sen. Richard Durbin (D-IL), and Sen. Robert Menendez (D-NJ) share a moment during a news conference on a comprehensive immigration reform framework Monday.
Now playing
01:08
Rubio says it's a 'safe assumption' he will run again
Marco Rubio on The Lead
CNN
Marco Rubio on The Lead
Now playing
01:16
Rubio: Plagiarism controversy doesn't matter
CNN
Now playing
01:25
Marco Rubio: Istanbul airport attack 'ISIS directed'
Senate TV
Now playing
03:28
Rubio discusses decision to leave Senate
CNN
Now playing
00:49
Marco Rubio: Not God's plan that I be president in 2016
CNN
Now playing
00:59
Rubio says Trump picking him for V.P. would backfire
OKATIE, SC - FEBRUARY 11:  Republican presidential candidate Sen. Marco Rubio (R-FL) speaks a campaign town hall meeting at the Sun City Hilton Head's Magnolia Hall February 11, 2016 in Okatie, South Carolina. Earlier in the week Rubio placed fifth in the New Hampshire primary, behind fellow GOP candidates Jeb Bush, John Kasich, Sen. Ted Cruz (R-TX) and Donald Trump, who won with 35 percent of the vote.  (Photo by Chip Somodevilla/Getty Images)
Chip Somodevilla/Getty Images/File
OKATIE, SC - FEBRUARY 11: Republican presidential candidate Sen. Marco Rubio (R-FL) speaks a campaign town hall meeting at the Sun City Hilton Head's Magnolia Hall February 11, 2016 in Okatie, South Carolina. Earlier in the week Rubio placed fifth in the New Hampshire primary, behind fellow GOP candidates Jeb Bush, John Kasich, Sen. Ted Cruz (R-TX) and Donald Trump, who won with 35 percent of the vote. (Photo by Chip Somodevilla/Getty Images)
Now playing
01:22
Rubio: Jeb's lock on Florida money was costly 2016 hurdle
NORTH CHARLESTON, SC - JANUARY 14:  Republican presidential candidates (L-R) New Jersey Governor Chris Christie and Sen. Marco Rubio (R-FL) participate in the Fox Business Network Republican presidential debate at the North Charleston Coliseum and Performing Arts Center on January 14, 2016 in North Charleston, South Carolina. (Photo by Scott Olson/Getty Images)
Scott Olson/Getty Images
NORTH CHARLESTON, SC - JANUARY 14: Republican presidential candidates (L-R) New Jersey Governor Chris Christie and Sen. Marco Rubio (R-FL) participate in the Fox Business Network Republican presidential debate at the North Charleston Coliseum and Performing Arts Center on January 14, 2016 in North Charleston, South Carolina. (Photo by Scott Olson/Getty Images)
Now playing
03:35
Rubio says he walked into 'trap' laid by Christie in N.H. Debate
MANCHESTER, NH - FEBRUARY 06:  Republican presidential candidates Jeb Bush and Sen. Marco Rubio (R-FL) participate in the Republican presidential debate at St. Anselm College February 6, 2016 in Manchester, New Hampshire. Sponsored by ABC News, the Independent Journal Review and Google, this is the final televised debate before voters go to the polls for the New Hampshire primary on February 9.  (Photo by Joe Raedle/Getty Images)
Joe Raedle/Getty Images North America/Getty Images
MANCHESTER, NH - FEBRUARY 06: Republican presidential candidates Jeb Bush and Sen. Marco Rubio (R-FL) participate in the Republican presidential debate at St. Anselm College February 6, 2016 in Manchester, New Hampshire. Sponsored by ABC News, the Independent Journal Review and Google, this is the final televised debate before voters go to the polls for the New Hampshire primary on February 9. (Photo by Joe Raedle/Getty Images)
Now playing
03:39
Rubio on running against one-time mentor Jeb Bush
marco rubio trump attack embarrassed sot_00001028.jpg
marco rubio trump attack embarrassed sot_00001028.jpg
Now playing
00:59
Rubio 'embarrassed' by his personal attack on Trump
Now playing
01:30
Miami's Cubans discuss Sen. Marco Rubio
Marco Rubio Trump rally violence election sotu_00000000.jpg
CNN
Marco Rubio Trump rally violence election sotu_00000000.jpg
Now playing
01:29
Rubio: Someone could die at Trump rally
rubio supporting gop nominee carroll sot nr_00011913.jpg
rubio supporting gop nominee carroll sot nr_00011913.jpg
Now playing
01:56
Rubio: 'I'll support nominee, but it's getting harder'
CNN
Now playing
02:31
Rubio to Trump: I am correct, not politically correct
CNN Republican Debate at the University of Miami.
Edward M. Pio Roda/CNN
CNN Republican Debate at the University of Miami.
Now playing
02:35
Donald Trump, Marco Rubio spar over Cuba
OKATIE, SC - FEBRUARY 11:  Republican presidential candidate Sen. Marco Rubio (R-FL) speaks a campaign town hall meeting at the Sun City Hilton Head's Magnolia Hall February 11, 2016 in Okatie, South Carolina. Earlier in the week Rubio placed fifth in the New Hampshire primary, behind fellow GOP candidates Jeb Bush, John Kasich, Sen. Ted Cruz (R-TX) and Donald Trump, who won with 35 percent of the vote.  (Photo by Chip Somodevilla/Getty Images)
Chip Somodevilla/Getty Images/File
OKATIE, SC - FEBRUARY 11: Republican presidential candidate Sen. Marco Rubio (R-FL) speaks a campaign town hall meeting at the Sun City Hilton Head's Magnolia Hall February 11, 2016 in Okatie, South Carolina. Earlier in the week Rubio placed fifth in the New Hampshire primary, behind fellow GOP candidates Jeb Bush, John Kasich, Sen. Ted Cruz (R-TX) and Donald Trump, who won with 35 percent of the vote. (Photo by Chip Somodevilla/Getty Images)
Now playing
01:02
Marco Rubio 'not proud' of some Trump attacks
rubio mocks trump tweets rally sot ath_00023314.jpg
CNN
rubio mocks trump tweets rally sot ath_00023314.jpg
Now playing
02:38
Rubio mocks Trump at Dallas rally
cnn houston debate recap origwx nws_00001511.jpg
cnn houston debate recap origwx nws_00001511.jpg
Now playing
01:30
CNN's Houston GOP debate in 90 seconds
marco rubio anti-establishment record dnt tuchman ac_00010517.jpg
marco rubio anti-establishment record dnt tuchman ac_00010517.jpg
Now playing
02:00
Marco Rubio looks to avoid 'establishment' label

Story highlights

Rubio's office said he would miss Wednesday's meeting after attending a classified briefing on Tuesday

Rubio has been under attack for missing votes in the Senate

(CNN) —  

Democrats are hitting Sen. Marco Rubio for skipping closed-door briefings on the Paris attacks Wednesday as his campaign battles accusations from both sides that he’s an absentee senator.

The Florida Republican’s spokesman Alex Conant explained that Rubio was missing the briefings after attending a classified Intelligence Committee session on the attacks on Tuesday. As a member of that committee, he would have access to information not afforded to all senators.

Still, the Democratic National Committee sent out an email blast assailing the presidential candidate for skipping out on Wednesday’s briefing to attend a fundraiser.

“While the rest of the world is focused on the terror attacks in Paris, Rubio is skipping critical briefings on national security to focus on high-dollar fundraisers,” DNC spokeswoman Christina Freundlich said in a statement. “He excuses his poor voting record by saying the votes he misses don’t matter, but it’s especially galling when he’s missing national security briefings in order to attend ritzy West Coast fundraisers.”

Rubio’s opponents on both sides of the aisle have tried to paint him as an absentee senator for missing the most votes this year of the senator candidates, but he has responded that he makes sure to attend important votes.

He has also turned his frustration with Congress into a campaign message, saying he is missing votes to run for president to effect real change.

The DNC email specifically hit Rubio for missing a closed briefing of the Foreign Relations Committee on the attacks on Wednesday morning.

That meeting was largely focused on the refugee situation, with witnesses from the State Department, Department of Homeland Security and Office of the Director of National Intelligence.

RELATED: GOP looks to seize national security advantage

The candidate will be attending an evening fundraiser in Newport Beach, California, that starts at $1,000 per person.

Rubio is the only candidate in the race who serves on the Senate Intelligence Committee, and as such would be the only one with access to the classified information the committee is briefed on regularly.

Kentucky Sen. Rand Paul, Rubio’s presidential opponent, also serves on Foreign Relations and was at Wednesday morning’s session, his office confirmed. He will also be at the Wednesday evening briefing.

None of the Senate offices of the other senators running for president, including Sens. Lindsey Graham, R-S.C.; Ted Cruz, R-Texas; and Bernie Sanders, I-Vermont, immediately responded to a CNN inquiry about whether the lawmakers would be attending the all-Senate briefing Wednesday evening.