Sen. Joe Manchin (D., W.Va.) said Monday on "CBS This Morning" that there's no smoking gun regarding the investigation into alleged collusion between President Donald Trump's campaign and Russian officials.

Host Charlie Rose pointed out to Manchin that Sen. Mark Warner (D., Va.) said that there's a lot of smoke, but no smoking gun.

"Is that your position?" Rose asked.

"True, yeah," Manchin replied. "They're sending a lot of smoke signals. There's a lot of people we know were involved and had some sort of contact or relationships with the Russians."

Manchin also said that the Senate Intelligence Committee he is part of was made up of "truly Americans—not Democrats or Republicans, but Americans."

"They're gonna make decisions based on the intel," Manchin said. "We've been told and we always believed that the intel takes you to the facts, the facts will take you to the truth. Then you make your decision."

"I don't think any person, whether it's a homeless person or a person at the highest level of government such as the president, will be spared if something is wrong," he said.