HRC is withholding endorsements from two Ohio Democrats over their positions on transgender athletes and other trans-related issues.
The South Carolina Senate nominee dismissed Trump's name-calling, saying it won't lower gas or grocery prices.
Only 46% of voters rate gender identity issues as "extremely" or "very" important, trailing the economy, health care, and voting rights.
The 22-term Ohio congresswoman touts her opposition to trans-inclusive school policies, drawing criticism from LGBTQ advocates.
If reelected in November, the Delaware congresswoman hopes to help shape House Democrats' messaging as a committee co-chair.
The president claimed Democrats would push “transgender for everyone” and other policies if they regain power.