Trump admin live updates: Trump signs funding bill to avert shutdown

Health and Human Services Secretary Robert F. Kennedy Jr. told food industry leaders in a closed-door meeting Monday that he wants them to remove artificial color additives from their products by the end of his first term, according to a memo describing the meeting, which was obtained by ABC News.

At the Washington gathering, which included the CEOs of Kellogg's, Smucker's, and General Mills, Kennedy said it was a top priority of the Trump administration to rid America's food of the dyes, wrote Melissa Hockstad, President and CEO of the Consumer Brands Association, a trade group, who penned the memo.

Hockstad addressed the memo to "Consumer Brands Member CEOs."

"The Secretary made clear his intention to take action unless the industry is willing to be proactive with solutions," Hockstad wrote.

--ABC News' Will McDuffie and Anne Flaherty

White House press secretary Karoline Leavitt said news out of the talks between U.S. and Ukrainian officials in Saudi Arabia has been "positive."

"I can assure you and everybody here and the American people that the news we've received from that meeting throughout the day, and the president has been briefed on, is positive. This meeting has been productive. I will let Secretary of State Rubio and our national security adviser speak to specifics of what has taken place today when they are ready to do so, when the meeting concludes," she said.

On Tuesday afternoon, Trump again criticized Rep. Thomas Massie's stance that he will vote no on the continuing resolution to keep the government funded. Trump said in a Truth Social post that he wanted Massie to be primaried, a threat he issued Monday night.

"He can’t even approve a Continuing Resolution when he approved them many times during his career as a 'Congressman,'" the president wrote. "Thomas Massie is a GRANDSTANDER, and the Great People of Kentucky are going to be watching a very interesting Primary in the not too distant future!"

ABC News' Karen Travers asked White House press secretary Karoline Leavitt whether the president had any responsibility over the recent drops in the stock market because of his economic policies.

Trump touted the stock markets gains after the election, but claimed that recently he wasn't watching the market.

Leavitt dodged the question.

"The president will look out for Wall Street and for Main Street just like he did in his first term," she said. "And people on Wall Street and Main Street should bet on this president."