Republicans have won full control of Washington, but Democrats will retain two key levers of power to shape legislative outcomes in Donald Trump’s second term.

Donald Trump made a victor’s return to Washington Wednesday morning for the first time since winning the presidential election last week.

Returning lawmakers will be choosing the leaders for the next Congress and finishing work on the remaining priorities of the outgoing 118th Congress.

WASHINGTON — Donald Trump has had few defenders in Congress as reliable as Matt Gaetz, who has thundered at one prosecutor after another for perceived bias against the president-elect and emphatically amplified the Republican's rallying cry that the criminal investigations into him are “witch hunts.”

The FBI is offering up to $25,000 in exchange for information about the suspect they believe set fire to several ballot boxes in the Pacific Northwest during early voting last month.

Sylvester Stallone welcomed Donald Trump to the stage at the President-elect’s Mar-a-Lago event Thursday evening, praising him as the “second George Washington.” The two shook hands before Trump’s headlining speech for the America First Policy Institute gala,

Voters have given the once-fractured House GOP a second chance at leading by delivering Republicans another razor-thin House majority in the 2024 elections

With votes still being counted, here's a look at the key races that remain uncalled by the NBC News Decision Desk (read more on how those races are called on NBCNews.com).