Trump 2nd term live updates: Trump defends tariffs, declines to comment on Ukraine aid

House Minority Leader Hakeem Jeffries will attend Trump's address to Congress on Tuesday night, the lawmaker announced Monday.

Jeffries said he and Democratic leaders will attend “to make clear to the nation that there is a strong opposition party ready, willing and able to serve as a check and balance on the excesses of the administration.”

“The decision to attend the Joint Session is a personal one and we understand that members will come to different conclusions. However, it is important to have a strong, determined and dignified Democratic presence in the chamber. The House as an institution belongs to the American people, and as their representatives we will not be run off the block or bullied,” Jeffries wrote in a letter to colleagues.

Jeffries said Democrats are “encouraged” to “stand together” on Wednesday at 11:30 a.m. on the East Front Capitol Steps “for an event featuring the voices of the American people.”

-ABC News' Lauren Peller

Sen. Elissa Slotkin, who is delivering the Democratic response tomorrow, previewed her speech on a call with Democrats today in which she outlined its focus on economic security, national security, and securing the democracy, according to sources.

She is also expected to take on Trump and Elon Musk's efforts to shrink the size of the federal government, and she plans to bring someone directly impacted by those efforts -- Andrew Lennox, a Marine who served in Iraq, Afghanistan and Syria who was fired from his job at the VA in Ann Arbor, Michigan.

-ABC News' Rachel Scott and John Parkinson

President Donald Trump amended his executive order on tariffs impacting Chinese goods to add the additional 10% tariffs that he announced Monday.

The amended executive order says that tariffs on imports from China will now total 20%.

-- ABC News' Michelle Stoddart

The Senate will vote Monday on whether to advance the Protection of Women and Girls in Sports Act, which aims to codify President Donald Trump's executive order barring transgender athletes from participating in women's sports.

The legislation will need 60 votes to advance to debate when it comes up later Monday afternoon. It's unlikely that Democrats will provide the necessary support to advance it, but the vote could prove a politically challenging one for some vulnerable moderates.

In floor remarks Monday, Majority Leader John Thune called the vote a "time of choosing for Democrats," arguing that policies that permit transgender athletes in women's sports take away opportunities from female athletes.

The House has already passed a version of this bill. The Senate considered it as an amendment to a government funding bill last year. At the time, all Democrats opposed it, though voting to support it at that time could have risked a government shutdown.

– ABC News' Allie Pecorin