Republican presidential candidate Donald Trump speaks during a rally at the San Jose Convention Center in San Jose, California on June 2, 2016.
JOSH EDELSON/AFP/Getty Images
Republican presidential candidate Donald Trump speaks during a rally at the San Jose Convention Center in San Jose, California on June 2, 2016.
Now playing
07:56
Senator Stabenow: Donald Trump is a con man
CBS
Now playing
01:43
Hillary Clinton defends Bill not resigning
CNN
Now playing
02:12
Clinton: Kavanaugh ceremony a political rally
Now playing
01:48
Clinton laughs at Kavanaugh's comment
CBS
Now playing
01:00
Hillary Clinton makes cameo on 'Murphy Brown'
hillary clinton amanpour impeachment_00014522.jpg
hillary clinton amanpour impeachment_00014522.jpg
Now playing
01:47
Clinton: Impeachment 'will be left to others to decide'
hillary clinton republicans amanpour intv vpx_00000000.jpg
hillary clinton republicans amanpour intv vpx_00000000.jpg
Now playing
03:04
Clinton: Civility starts by electing Democrats
Now playing
00:55
Clinton ends Franklin tribute with smartphone
CNN
Now playing
01:49
Clinton rejects Trump comparisons to her husband
Schomburg Center
Now playing
01:58
Bill Clinton: I apologized for Lewinsky scandal
US President Donald Trump (L) and Russian President Vladimir Putin arrive for a meeting in Helsinki, on July 16, 2018. (Photo by Brendan Smialowski / AFP)        (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
BRENDAN SMIALOWSKI/AFP/Getty Images
US President Donald Trump (L) and Russian President Vladimir Putin arrive for a meeting in Helsinki, on July 16, 2018. (Photo by Brendan Smialowski / AFP) (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
Now playing
04:21
Fact check: Hillary Clinton's misleading comments
Former US Secretary of State Hillary Clinton speaks at the Eighth Annual Women in the World Summit at Lincoln Center for the Performing Arts on April 6, 2017, in New York City.
Angela Weiss/AFP/Getty Images
Former US Secretary of State Hillary Clinton speaks at the Eighth Annual Women in the World Summit at Lincoln Center for the Performing Arts on April 6, 2017, in New York City.
Now playing
00:39
Hillary Clinton goes after al-Assad, Putin
AUSTIN, TX - NOVEMBER 17:  Former U.S. Secretary of State Hillary Rodham Clinton signs copies of her new book 'What Happened' at BookPeople on November 17, 2017 in Austin, Texas.  (Photo by Rick Kern/WireImage)
Rick Kern/WireImage/WireImage
AUSTIN, TX - NOVEMBER 17: Former U.S. Secretary of State Hillary Rodham Clinton signs copies of her new book 'What Happened' at BookPeople on November 17, 2017 in Austin, Texas. (Photo by Rick Kern/WireImage)
Now playing
01:29
Clinton: Trump parrots what Putin says
TV3
Now playing
01:01
Clinton: Children treated as political pawns
Broadway Video/Universal Television
Now playing
01:15
Miley Cyrus tears up thanking Hillary Clinton
RBG on sexism and HRC_00010727.jpg
RBG on sexism and HRC_00010727.jpg
Now playing
01:50
RBG says Clinton was criticized worse than men

Story highlights

Before he walked them back, Tester's comments stood in stark contrast to members of his party

"I shouldn't have said that and it doesn't reflect my values," Tester clarified

(CNN) —  

The head of Senate Democrats’ campaign arm says he regrets questioning whether the nation is ready for a two-woman presidential ticket, as Hillary Clinton is poised to claim the party’s nomination.

Sen. Jon Tester was recorded in an interview with WNYC’s Todd Zwillich over the weekend responding to Clinton vice-presidential speculation and senators, saying he’s a fan of Ohio Sen. Sherrod Brown and questioning whether Massachusetts Sen. Elizabeth Warren would be a good fit.

“I don’t know. Is the country ready for two women? I don’t know,” Tester responded.

The audio was posted online and circulated by a conservative super PAC dedicated to digging up dirt on Democrats.

Reached Tuesday, Tester, a Montana Democrat, said he did not stand by the comments.

“I shouldn’t have said that and it doesn’t reflect my values,” Tester said in a statement provided by his office. “I have always believed that we need more women in leadership positions, not fewer.”

RELATED: Clinton’s muted historical moment

His office also stressed that Tester has made recruiting women for office a focus in his position as chairman of the Democratic Senatorial Campaign Committee.

Before Tester walked them back, his comments stood in stark contrast to members of his party, who happily speculated about Clinton having a woman running mate the day after CNN and The Associated Press declared her the presumptive Democratic nominee, and the first woman to ever claim a major party’s nomination.

Asked about Tester’s remarks, Senate Minority Leader Harry Reid took the opposite view.

“We’ve had two men representing the president and vice president for centuries. My personal feeling is I don’t see why you couldn’t have two women, whoever they might be,” Reid told reporters on the Hill.

Endorsing Clinton for the first time, House Minority Leader Nancy Pelosi on Tuesday also said Clinton’s running mate could be a woman.

“We’ve had two men over and over again for hundreds of years,” she said on ABC’s “Good Morning America.” “I think that two women, whoever they may be, that would be fabulous as well.”

RELATED: Pelosi endorses Clinton

Pelosi’s California is one of six states voting Tuesday in the final major primary day.

While Warren’s office did not respond to a request for comment about the speculation over her as Clinton’s running mate and two women on the ticket in general, her colleague, New York Sen. Kirsten Gillibrand, endorsed the idea.

“Sen. Gillibrand thinks two women on the ticket clearly would be a fantastic idea,” her spokesman, Marc Brumer, told CNN.