Ruben Gallego running against Kari Lake for seat
Roohi Rustum joins the reelection effort from the DNC
Ky. Republican has been in chamber since 1985
Challenges come despite bipartisan interest in addressing the problem
The former president has led an anti-trans campaign
Nonbinary Okla. teenager died earlier this month
Pundit defended his infamous anti-trans remarks at last year's event
Senator's bill introduced Feb. 1
Ga. Republican has long history of attacking health official
Close allies of the former president propose an extreme right-wing agenda