President Donald Trump cited pollsters who said the government shutdown and his absence from the ballot caused GOP losses in key elections. Most Republican defeats occurred in Democratic strongholds such as New York, California, New Jersey, and Virginia. In New York, progressive Zohran Mamdani won the mayor’s race against a bipartisan coalition, while California voters approved Proposition 50, eliminating the state’s independent redistricting process and potentially giving Democrats up to five new House seats. Trump called the outcome “not good for Republicans” but said the party “learned a lot.”

Democrats also secured decisive wins elsewhere. In New Jersey, Mikie Sherrill defeated Republican Jack Ciattarelli, and in Virginia, Abigail Spanberger beat Winsome Earle-Sears by a large margin. These results widened Democratic advantages in states that Trump had lost by single-digit margins in previous elections. Amid the political fallout, House Republicans are examining constitutional options to block Mamdani from assuming office, invoking the 14th Amendment’s post-Civil War “insurrection clause.” GOP members claim his past activism and comments about immigration enforcement could fall under the provision that prohibits those who provide “aid or comfort” to U.S. enemies from serving in government.

This clause, originally meant to bar former Confederates from holding office, has reemerged in recent political battles, including previous state efforts to remove Trump from ballots — a move the Supreme Court struck down, ruling that only Congress can enforce Section 3. Citing that decision, some Republicans are considering a post-election House vote declaring Mamdani ineligible, though the plan faces significant constitutional, procedural, and political obstacles. The Democrat-controlled Senate and the courts would likely block any such attempt, making the proposal more symbolic than practical even as it highlights ongoing partisan tensions over eligibility and accountability in public office.