Demonstrators threw Russian flags at American President Donald Trump, reports CNN.
This happened in a corridor of the US Congress building, while the head of state was going to a scheduled meeting with Senators from the Republican Party.
The demonstrator threw flags of the Russian Federation with the words:
"Trump is a traitor!"
A second Senator from the Republican Party of the United States came into confrontation with President Donald Trump, world agencies said.
Jeff Flake said he would not run for a new term so he could talk freely. "It is unthinkable that someone has to stand silent in order to keep the norms that America keeps strong."
US President Donald Trump presented a tax reform in Indianapolis on Thursday, which he says includes "the biggest tax cut in the history of the country," the news agencies reported.
He proposes a reduction in corporate tax from 35 to 20 percent in an attempt to make US companies more competitive, DPA said.