Trump 2nd term updates: Trump excludes low-value shipments from looming tariffs

Department of Health and Human Services Secretary Robert Kennedy Jr., who has advocated for anti-vaccination policies, was asked about the death of an unvaccinated child in Texas who contracted measles.

Kennedy said the agency is monitoring the reports of the outbreak in Texas, but appeared to downplay the situation.

"There have been four measles outbreaks this year in this country, last there that was 16, so it's not unusual to have measles outbreaks every year," he said.

This child's death marks the first measles death in the U.S. in a decade.

The CDC currently recommends people receive two vaccine doses, the first at ages 12 to 15 months and the second between 4 and 6 years old. One dose is 93% effective, and two doses are 97% effective. Most vaccinated adults don't need a booster.

Measles was declared eliminated from the U.S. in 2000 because of the highly effective vaccination program, according to the CDC. However, vaccination rates have been lagging in recent years.

-with ABC News' Mary Kekatos

Trump was asked if Russia's Vladimir Putin will have to make concessions as negotiations unfold to end Russia's invasion of Ukraine.

"Yeah, he will. He's going to have to," Trump said.

When later asked what concessions Putin will have to make, Trump shifted toward Ukraine and said they could "forget" about NATO membership.

“Oh, our elections are extremely dishonest," Trump falsely claimed.

He then went on to discuss the “sophistication” of modern paper, saying it is “a very safe form of voting.”

Trump said the tariffs against Mexico and Canada are expected to go into effect on April 2, after a monthlong pause.

But then Commerce Secretary Howard Lutnick said another pause is possible based on fentanyl prevention and progress on the border.

"If they can prove to the president they've done an excellent job," Lutnick said.

"It's going to be hard to satisfy," Trump then said.