Sen. John McCain is among several Republic senators asking for President Trump's oldest son, Donald Trump, Jr., to testify in front of Congress in regard to his reported meeting with Russian lawyer Natalia Veselnitskaya.

Reports say, Trump Jr. took the meeting with Veselnitskaya after being promised damaging information allegedly on Hillary Clinton during the 2016 presidential campaign. Trump Jr. released copies of emails, according to TIME, showing the lawyer was said to be acting "as part of the Russian government's "support" for Trump."

McCain told the Weekly Standard this would not have been acceptable during his 2008 campaign.

"I can assure you the people around me would not be inclined to do that kind of thing, especially not one of my sons. 'Cause my sons—they're in the military. You know, they'd probably be court-martialed," McCain told the Standard Tuesday.

McCain agrees with other senators who have said Trump Jr. needs to testify before Congress adding there's "a lot more to learn about the whole issue."

"Another shoe drops from the centipede every few days," he told the Standard.

But, according the Standard's report, McCain said he didn't not know what laws, if any, the now-president's son may have violated calling it a "matter of public opinion more than anything else."