The House passed the changes to the Paycheck Protection Program by a 417-1 margin last week as the coronavirus takes a huge toll on the economy.
Tuesday's congressional testimony will feature three witnesses who listened in on Trump's July 25 phone call with Ukrainian President Volodymyr Zelenskiy.
Republicans who spent their Fourth of July in Russia to help Trump in advance of the Helsinki summit distanced themselves from the president's remarks.
Numerous Republican lawmakers have criticized the mounting tensions with global trading partners, but leaders have not gotten behind a bill to limit President Donald Trump's ability to impose tariffs.
Sen. Richard Shelby told Russian Foreign Minister Sergey Lavrov that he hoped Trump's meeting with Putin could mark a turning point for relations between the two countries.
Some free trade Republican lawmakers are trying to curb Trump's ability to put tariffs on U.S. allies.
Dozens of lawmakers stand to reap a big windfall from a loophole in the sweeping GOP tax overhaul bill.
With the vote, the GOP leaps closer to its promise of dramatically remaking U.S. tax law.
A flurry of last-minute changes Friday to the Senate Republican tax bill have set the plan on a fast track to passage.
Holdout Sen. Bob Corker says he thinks the GOP can approve it even without his vote.
CNBC's Ylan Mui reports Sen. Ron Johnson (R-Wisc.) has been won over to vote for the Senate's tax reform bill.
Sens. Johnson and Daines reach an agreement with the GOP leadership to raise the amount of pass-through income business owners can deduct.
The change appears to be designed to earn support from Sens. Ron Johnson, R-Wis., and Steve Daines, R-Mont.
A tax bill tool designed to win the support of key GOP senators is finding resistance among others.
U.S. Senate Republicans rammed forward a tax-cut bill in an abrupt, partisan committee vote that set up a full vote by the Senate as soon as Thursday.
Some GOP senators haven't yet committed to supporting the tax bill, but anti-tax crusader Grover Norquist thinks the legislation will pass.
With the party-line 12-11 vote to advance the plan, Republicans overcame one possible roadblock.
U.S. President Donald Trump predicted that Sen. Jeff Flake will oppose the GOP tax bill, but the senator's office says he has not yet made up his mind.
U.S. President Donald Trump won't insist on including repeal of a health insurance mandate the tax-reform bill, a senior White House aide said on Sunday.
Treasury Secretary Steven Mnuchin makes a pitch to owners of small and medium-sized businesses to support the Republican tax cut efforts.
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