Fox News contributor Charles Krauthammer on Tuesday dismissed House Republicans resolution to begin impeachment proceedings for IRS Commissioner John Koskinen, noting that none of the Republican investigations into the Obama administration have been successful.

“This is not going to end well,” he said on Fox’s “Special Report.” “Republicans in the Congress have shown that they have no ability to conduct successful investigations of this administration. Everything they have touched has failed or backfired, even Benghazi.”

Krauthammer said that even though he thinks that House Republicans found “prima facie evidence” showing that Hillary Clinton made misleading statements about what sparked the attack on the U.S. compound in Benghazi, the latest House hearing with Clinton was unsuccessful.

“If you can’t score on that, you’re not going to score on this,” he said. “This is a waste of energy.”

Watch Krauthammer’s comments via Fox News: