Jordan, currently the ranking member on the House Oversight Committee and an outspoken defender of President Trump, has essentially led Republican efforts in the closed-door impeachment proceedings thus far, where three committees have been able to participate. His top investigator, Steve Castor, has conducted the bulk of witness questioning.
If Minority Leader Kevin McCarthy were to temporarily assign Jordan to the Intelligence Committee, he would have to make room for him by removing a current member. The move would also undermine Devin Nunes, the committee’s top Republican. McCarthy has sole discretion over Intelligence Committee assignments.