Hey, it's Scott Detcher, the host of Trump's Terms, a podcast where we bring you short, focused episodes about the 47th president and the biggest changes he is trying to make.

A lot of those changes will be front and center during his address to a joint session of Congress on March 4th.

In the days after, we will bring you stories not just about what he said, but about what is actually happening and what isn't

happening. Listen to Trump's terms from NPR.

Live from NPR News in Washington, I'm Nora Rom. President Trump announced today that tariffs

on Canada and Mexico are about to go into effect. Tomorrow tariffs, 25% on Canada and 25% on Mexico, and that'll start. So they're going

to have to have a tariff. So what they have to do is build their car plants, frankly, and other things

in the United States. The tariffs are being imposed to pressure Canada and Mexico to do more

to stop the flow of illegal drugs across their borders into the U.S.

As Trump was speaking, stock markets move sharply lower.

The National Science Foundation says it plans to reinstate roughly half the staff had fired last month.

As NPR's Jonathan Lampert reports, the move is in response to a federal court decision last week.

In February, the National Science Foundation terminated about 10% of its staff in response to President

Trump's executive orders aimed at reducing the federal workforce. At NSF, roughly half of those fired

were probationary employees who are typically in the first year of a new job. Last week, a federal judge ruled that the mass firings of probationary employees is illegal

and should be stopped. In response, NSF says it plans to rehire with full back pay all 86

probationary staff they terminated. But the NSF will not be rehiring the other half of those fired as they were

temporary employees. Many scientists worry that the mass firing would slow or stall the agency's

work funding basic research across the U.S. Jonathan Lambert, NPR News. As the West Texas measles

outbreak continues to grow,ious disease experts stress that vaccination

is the best offense against the disease. Even longtime vaccine opponent Robert F. Kennedy Jr.,

now the nation's health secretary, wrote an op-ed this weekend in favor of inoculation. As NPR's

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