Full interview: Rep. Steve Cohen (D-Tenn.) speaks out about Donald Trump's press conference with Vladimir Putin

Rep. Steve CohenStephen (Steve) Ira CohenDemocrat vows to move forward with impeachment, dividing his party Five takeaways from acting AG's fiery House hearing Whitaker takes grilling from House lawmakers MORE (D-Tenn.) on Tuesday called for the United States to conduct large-scale hacking attack on Russia in retaliation for the country's efforts to influence American politics in 2016 and subsequent years.

"Cripple everything," Cohen said in an interview with Hill.TV's morning news show, "Rising," when he was asked if he supported cyber-warfare efforts against Russia's financial industry. "If they all fell underneath the Kremlin and were buried together, it would be too soon."

Cohen also took aim at President Donald TrumpDonald John TrumpTrump nominates ambassador to Turkey Trump heads to Mar-a-Lago after signing bill to avert shutdown CNN, MSNBC to air ad turned down by Fox over Nazi imagery MORE for his conduct in Helsinki at a summit with Russian president Vladimir Putin, saying that he was surprised that Trump was so deferential to Putin.

"I thought he would have at least tried to put a facade of being an America First," he said. "It's obvious Trump first, Russia second, America third."