Sen. Tim Kaine (D-VA) said this afternoon that he now sees Robert Mueller's Russia investigation as a probe into possible "treason."
Kaine and others on Capitol Hill reacted this afternoon to the latest revelations about a meeting last June between Donald Trump Jr. and a Russian lawyer.
Earlier today, Trump Jr. released what he said was the “entire email chain” of conversations setting up the meeting with attorney Natalia Veselnitskaya.
In the email chain, Trump Jr. expresses interest in obtaining damaging information on Hillary Clinton.
Kaine, who was Clinton's running mate last year, said the new reports take the probe to another level.
"To meet with an adversary to try to get information to hijack democracy, the investigation is now more than just an obstruction of justice investigation, more than just a perjury investigation, it's a treason investigation," he said.
But Sen. Lindsey Graham (R-SC) questioned why the Russian government would send a lawyer who didn't know anything to the Trump campaign.
"It's kind of an odd way to suggest the Russian government wants to help," he said.
Watch the report above.