President Donald Trump and first lady Melania Trump teamed up on Monday for the signing of the "Take it Down Act" -- a bipartisan bill aimed at cracking down on the nonconsensual sharing of sexually explicit videos and photos, including deepfakes generated by artificial intelligence.

Melania Trump, in remarks in the Rose Garden, called the bill's signing a "national victory that will help parents and families protect children from online exploitation."

"Artificial Intelligence and social media are the digital candy for the next generation: sweet, addictive and engineered to have an impact on the cognitive development of our children," she said. "But unlike sugar, these new technologies can be weaponized, shape beliefs, and sadly affect emotions, and even be deadly."

The first lady thanked her husband "for standing with us on this effort" and said she's calling on the Federal Trade Commission and the private sector to do their part next on this issue. Her support for the bill is part of her "Be Best" campaign, an initiative launched during President Trump's first term that is focused on children's well-being.

"With the rise of AI image generation, countless women have been harassed with deep thanks and other explicit images distributed against their will. This is the wrong and it's just so horribly wrong, and it's a very abusive situation ... and today we're making it totally illegal," President Trump said in his own remarks.

Vice President JD Vance, while in Rome for Pope Leo XIV's inaugural mass, "passed along a letter to the Pope from the president and from the first lady extending their warm wishes and inviting them to the White House as soon as they possibly can come," according to the White House.

White House press secretary Karoline Leavitt was asked on Monday if President Donald Trump has spoken to former President Joe Biden directly following Biden's prostate cancer diagnosis.

"Not to my knowledge, I don't believe they have spoken, but I'm sure the president would be open to doing that," Leavitt said. "I spoke to him last night about the former president's cancer diagnosis and the statement that he put out was the initial reaction he had with me on the phone as well."

Trump wrote on his conservative social media platform on Sunday, "Melania and I are saddened to hear about Joe Biden's recent medical diagnosis. We extend our warmest and best wishes to Jill and the family, and we wish Joe a fast and successful recovery."

White House press secretary Karoline Leavitt, at Monday morning's briefing, told reporters the public can expect to hear from President Donald Trump or the White House following his calls today regarding the Russia-Ukraine war.

Trump will be speaking with Russia's Vladimir Putin at 10 a.m. ET. Leavitt said Trump is planning to call Ukrainian President Volodymyr Zelenskyy immediately after that conversation.

"I don't want to get ahead of those very important conversations, but of course you will hear directly from the president or me after those calls conclude today, so you can expect that," she said.

ABC News Senior Political Correspondent Rachel Scott pressed Leavitt if Trump would set a new deadline for peace talks on the call, but Leavitt repeated she wouldn't speak ahead of Trump on any specific timeline.

"His goal is to see a ceasefire and to see this conflict come to an end, and he's grown weary and frustrated with both sides of the conflict," she said.

Asked if Trump is open to meeting with Putin, Leavitt said she believed Trump "would certainly be open to that but let's see how this call goes today."