As President Trump begins a foreign trip, the investigation continues stateside into possible interference into Trump's campaign by Russian officials.

That probe is being handled by FBI Acting Director Andrew McCabe and recently appointed Special Counsel Robert Mueller, who served as the FBI Director for 12 years.

"They will solve this case. And I will bet you right now - it's not going to take two years to figure this one out," said Charles McCormick, a former FBI special agent, who spoke highly of both McCabe and Mueller.

McCormick served in the FBI from 1970-2000 - the "two years to figure this one out" reference is a nod to Watergate, the scandal that forced President Richard Nixon to resign in 1974.

He described how FBI agents handle such investigations.

"They're investigating the acts that occurred. And thru those investigations of the acts themselves, is when they will begin to identify subjects and suspects," said McCormick.

While McCormick noted that attorneys could delay possible proceedings, he noted that as more information leaks out, people are typically more willing to speak with authorities.

"When you're dealing with a wide conspiracy, eventually there are those who run out of intestinal fortitude, they begin to think about themselves - their future," said McCormick.

He said cases of this magnitude have a unique designation within the department.

"When we have a big case like this in the FBI, we call it a 'special.' Because everybody who is assigned to it drops whatever else they were working on before, and they're on this thing, 24/7... No time off, you just do it. This is truly a special," McCormick explained.

McCormick said Muller would likely need a couple months to catch up on details of the investigation, but said once cases such as these gain momentum, they move quickly.

"It's going to go, and it's going to go very fast. Might take 2 years, might only take a year," said McCormick.

The FBI does have a wide-range of resources at their disposal, but they cannot force people to meet or speak with them. Still based off his experience, McCormick has faith people will cooperate.

"People are going to do the right thing. Eventually they will. And the FBI is going to be there to listen to them," said McCormick.

At this juncture of the probe, McCormick said he did not believe agents were solely focusing on any specific individual at this time, but the alleged actions.

Compared to Watergate, McCormick did see similarities. First, he noted that both Watergate and this current probe were conducted with interim FBI Directors, though it should be noted that Nixon was forced to pick an interim due to J. Edgar Hoover's death in 1972.

From a media standpoint, McCormick noted that Woodward and Bernstein, the two Washington Post reporters, were responsible for breaking the details of the investigation. Today, there are far more media outlets covering the case - from print to television to web.

As for James Comey's firing, McCormick took issue in the way it was handled - with Comey delivering a speech to agents as news of his dismissal flashed on a television screen behind him.

He does not believe President Trump should choose a career politician.