Rep. Ted Lieu, D-Calif., said recent allegations against President Trump have reached a critical level that can not be ignored and could require legal action.
"We no longer just have smoke. We have a raging 10-alarm fire at the White House," Lieu said in a Thursday interview on MSNBC's "The Last Word."
The House judiciary committee member said Trump's firing former FBI Director James Comey was an attempt to relieve pressure on himself, a "classic case of obstruction of justice."
"Anybody else who did something like this would be facing federal indictment and a criminal trial," Lieu added.
Trump referred to Comey as a "nut job" during his meeting with Russian government officials last week, according to a report released earlier Friday.
The president's criticism of the terminated FBI chief has caused some Democrats and Republicans to question whether the administration was trying to interfere in the probe of Russia and Trump's campaign associates.