Story highlights "Half of what Trump does is not OK," Graham said Thursday

He said, however, that Comey's opening statement shows there is no obstruction of justice case against Trump

Washington (CNN) Sen. Lindsey Graham, a frequent critic of President Donald Trump, said Thursday that many of the President's actions are troubling -- but that does not make them criminal.

The South Carolina Republican told CBS's Gayle King that it was inappropriate for Trump to tell James Comey that he needed his loyalty over dinner, as the former FBI director alleged in testimony released Wednesday.

"Half of what Trump does is not OK," he said Thursday on "This Morning." "If you are trying to convict him for being a bull in a China shop, crude and rude, you'd win."

"A lot of this stuff troubles me, but it is not a crime," Graham added.

Graham said Wednesday that Comey's opening statement for his hearing at the Senate intelligence committee shows "there is no obstruction of justice case" against Trump.

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