GOP senator shrugs off Trump's obstruction of justice -- and calls it part of his 'brash demeanor'
Senator Joni Ernst speaking with supporters at a campaign rally for U.S. Senator Marco Rubio at the Forte Banquet Center in Des Moines, Iowa. (Gage Skidmore/Flickr)

Sen. Joni Ernst (R-IA) on Monday shrugged off special counsel Robert Mueller's report that extensively chronicled President Donald Trump's efforts to obstruct his investigation -- and she said the report didn't tell us anything about Trump that we didn't already know before.

"I think we all know who the President is, he has a brash demeanor, that's about all I can say," Ernst said about the behavior revealed in Mueller's report, according to CNN's Manu Raju.

Ernst also dismissed calls to have Mueller testify before the Senate by saying Senate Republicans already had more important work to do.

"Really, the House seems all over this, I know that we will continue to work on judges as a primary concern in Judiciary," Ernst said. "I don't know that that's necessary, we have the report so we can go from there."

For far, Sen. Mitt Romney (R-UT) has been the only GOP senator to explicitly condemn the actions taken by the president and his campaign as described in the Mueller report -- and he has faced massive blowback from the president and his supporters for doing so.