President Donald Trump
PHOTO: Bloomberg vis Getty Images
President Donald Trump's lawyer, Rudy Giuliani, said Wednesday there was nothing illegal about Trump campaign advisers meeting with a Russian lawyer purportedly offering dirt on Democratic presidential candidate Hillary Clinton.
Now playing
02:06
Rudy Giuliani now says he won't make Ukraine trip
Now playing
01:27
Kristi Noem gets standing ovation for Dr. Fauci dig at CPAC
PHOTO: CNN
Now playing
01:55
'Disgusting': Trump ally attacks journalist's question
covid-19 relief package house biden sot malveaux nr vpx _00000000.png
PHOTO: CNN
covid-19 relief package house biden sot malveaux nr vpx _00000000.png
Now playing
02:28
CNN's Joe Johns explains Biden's short speech as relief bill heads to Senate
Sen. Bernie Sanders AC360 intv 02262021
PHOTO: CNN via Cisco Webex
Sen. Bernie Sanders AC360 intv 02262021
Now playing
03:54
Sanders on what happens with proposed minimum wage increase now
WASHINGTON, DC - JANUARY 17: The U.S. Capitol dome is seen beyond a security fence on January 17, 2021 in Washington, DC. After last week
PHOTO: Michael M. Santiago/Getty Images
WASHINGTON, DC - JANUARY 17: The U.S. Capitol dome is seen beyond a security fence on January 17, 2021 in Washington, DC. After last week's riots at the U.S. Capitol Building, the FBI has warned of additional threats in the nation's capital and in all 50 states. According to reports, as many as 25,000 National Guard soldiers will be guarding the city as preparations are made for the inauguration of Joe Biden as the 46th U.S. President. (Photo by Michael M. Santiago/Getty Images)
Now playing
02:33
This is what's in the $1.9 trillion coronavirus package
PHOTO: CNN
Now playing
02:24
Acosta corrects CPAC organizer: Trump did lose the election
Now playing
01:23
See what happened when CPAC organizers asked crowd to wear masks
Now playing
02:00
Hear Tapper's 'uncomfortable question' for Biden
PHOTO: Pool
Now playing
01:10
Rand Paul accused of 'transphobic attack' in confirmation hearing
PHOTO: CNN
Now playing
02:39
Republicans push new restrictive election bills in 43 states
van jones minimum wage
van jones minimum wage
Now playing
02:44
Van Jones: This is a make or break issue for Democrats
US President Joe Biden speaks about the 50 million doses of the Covid-19 vaccine shot administered in the US during an event commemorating the milestone in the Eisenhower Executive Office Building in Washington, DC, February 25, 2021. (Photo by SAUL LOEB / AFP) (Photo by SAUL LOEB/AFP via Getty Images)
PHOTO: Saul Loeb/AFP/etty Images
US President Joe Biden speaks about the 50 million doses of the Covid-19 vaccine shot administered in the US during an event commemorating the milestone in the Eisenhower Executive Office Building in Washington, DC, February 25, 2021. (Photo by SAUL LOEB / AFP) (Photo by SAUL LOEB/AFP via Getty Images)
Now playing
02:28
Axelrod explains the message Biden is sending with strike
WASHINGTON, DC - FEBRUARY 13: Senate Minority Leader Mitch McConnell (R-KY) walks from his office to the Senate Chamber for the fifth day of former President Donald Trump
PHOTO: Chip Somodevilla/Getty Images
WASHINGTON, DC - FEBRUARY 13: Senate Minority Leader Mitch McConnell (R-KY) walks from his office to the Senate Chamber for the fifth day of former President Donald Trump's impeachment trial at the U.S. Capitol on February 13, 2021 in Washington, DC. House impeachment managers asked the senate Saturday for the ability to question witnesses as part of the trial. (Photo by Chip Somodevilla/Getty Images)
Now playing
02:07
McConnell says he'd support Trump as GOP nominee
The Pentagon, the headquarters of the US Department of Defense, located in Arlington County, across the Potomac River from Washington, DC is seen from the air January 24, 2017.  / AFP PHOTO / Daniel SLIM        (Photo credit should read DANIEL SLIM/AFP via Getty Images)
PHOTO: Daniel Slim/Getty Images
The Pentagon, the headquarters of the US Department of Defense, located in Arlington County, across the Potomac River from Washington, DC is seen from the air January 24, 2017. / AFP PHOTO / Daniel SLIM (Photo credit should read DANIEL SLIM/AFP via Getty Images)
Now playing
05:24
US carries out airstrikes on Iran-backed militia groups
The exterior of the U.S. Capitol building is seen at sunrise on February 8, 2021 in Washington, DC. The Senate is scheduled to begin the second impeachment trial of former U.S. President Donald J. Trump on February 9.
PHOTO: Sarah Silbiger/Getty Images
The exterior of the U.S. Capitol building is seen at sunrise on February 8, 2021 in Washington, DC. The Senate is scheduled to begin the second impeachment trial of former U.S. President Donald J. Trump on February 9.
Now playing
01:57
Senate parliamentarian rules against minimum wage increase in relief bill
(CNN) —  

Joe Biden’s campaign has offered its first response after President Donald Trump’s personal attorney Rudy Giuliani said he would make a now-canceled trip to Ukraine to urge the country to investigate the Democratic presidential candidate.

“It’s great to see all these strong progressive voices stand up to this attempt at a blatantly political smear which in and of itself reflects the urgent need for change and to restore the soul of the country,” a Biden campaign official told CNN.

Friday, Sen. Elizabeth Warren and former Rep. Beto O’Rourke were among the 2020 Democratic contenders to express concern about Giuliani’s efforts.

“I just think it is highly unethical for the President’s personal lawyer to go meet with officials from foreign government to see if they can influence somehow the upcoming presidential election,” Warren said in Kermit, West Virginia. “We’ve had enough of that and Rudy Giuliani should just back off.”

In New Hampshire, O’Rourke said Giuliani’s proposed trip to Ukraine was “so very troubling, very disappointing, and and yet not a total surprise, given this President’s behavior and the pattern that he’d already set.”

Democratic lawmakers on Capitol Hill also chimed in with criticism of the proposed trip.

“It’s stunning that the Trump administration is going down the same tragic path they did in 2016. Here you have the President’s lawyer seeking help from a foreign government again to influence a presidential election. It’s just appalling,” House Intelligence Committee Chairman Adam Schiff said Friday.

“And his defense that he’s not seeking a foreign government’s help in the election, just an investigation – yes, it’s an investigation designed to affect one of the candidates they fear the most. I think it’s reprehensible.”

Sen. Chris Murphy, who called for a Senate query on Giuliani’s proposed trip to Ukraine before it was canceled, tweeted, “I know we’ve become numb to the corruption of this Administration, but this story should be the total focus of the political class today. The President is openly asking a foreign government to investigate his political rival. This is next level.”

Giuliani revealed his intention to travel to Ukraine on behalf of his client in a Thursday interview with The New York Times, but by Friday night, that plan was canceled.

Giuliani planned to meet with the country’s president-elect to encourage him to pursue two matters of interest to Trump: restarting an investigation into a Ukrainian company linked to Biden’s son, and looking into whether Ukrainians worked with Democrats to prompt the FBI investigation into Trump’s former campaign chairman, Paul Manafort.

Earlier Friday, Giuliani had defended going to Ukraine to press for an investigation into Biden’s call to remove a top Ukrainian official in 2016, when Biden was vice president. Biden called for the removal of the top Ukrainian prosecutor, who at one point had been investigating a Ukrainian natural gas company connected to Biden’s son, Hunter.

Within a year of the prosecutor’s removal, Ukraine’s new prosecutor general dismissed the case against the company, Burisma Holdings, a natural gas company controlled by one of Ukraine’s top oligarchs. Other Western governments also called for his removal, and no evidence has indicated that the move by Biden was inappropriate.

The Biden campaign has previously referred CNN to a statement a spokeswoman provided to The New York Times, which said Biden acted on Ukraine “without any regard for how it would or would not impact” Hunter’s business interests.

As Democrats criticized the trip as politically motivated, Giuliani insisted to CNN earlier Friday that the trip to Ukraine to seek to influence potential investigations would not have been meddling because the 2020 election is still 18 months away.

“I don’t want any favors. I just want this investigated,” Giuliani said.

Giuliani had previously told CNN that a “well-regarded investigator” he’s known for years put him in touch last November with current and former Ukrainian officials, who he says he’s interviewed over Skype and in person. In 2017, both the Democratic National Committee and a contractor denied working with Ukrainians.

But in a Friday night interview with Fox News, Giuliani said he won’t go to Ukraine, “in order to remove any political suggestion.”

“I will step back and I’ll just watch it unfold,” he said. That news came hours after President Trump told Politico in an interview that he planned to speak with Giuliani about the trip.

CNN’s Michael Warren, Caroline Kelly and Kyle Feldscher contributed to this report.