The top Republican leading the House investigation into Operation Fast and Furious said Sunday he expects a “bipartisan” floor vote to hold Attorney General Eric Holder in contempt of Congress this coming week.

“I believe they will (vote to hold him in contempt),” House Oversight and Government Reform Committee Chairman Darrell Issa, R-Calif., told “Fox News Sunday.” “Both Republicans and Democrats will vote that — I believe it will be bipartisan.”

Issa kept his focus on the Justice Department, clarifying that he has no evidence the White House was involved in any Fast and Furious cover-up. But he repeatedly said Congress is trying to get to the bottom of why the Justice Department “lied” about the operation.

The comments underscored the apparent momentum among majority House Republicans behind the contempt push, following a committee contempt vote against Holder along party lines this past week. That vote proceeded after Holder and Republicans were unable to reach an agreement over subpoenaed documents pertaining to the Obama administration’s Fast and Furious discussions.