Liz Cheney announced late Sunday that she is dropping her bid for a Senate seat due to “serious health issues” in her family. She did not go into details. “My children and their futures were the motivation for our campaign and their health and well-being will always be my overriding priority,” Cheney said. Cheney had been running as a primary challenger to Wyoming incumbent Mike Enzi, and had raised more than $1 million for the race since July. Enzi has held a persistent lead in the polls, but sources close to the campaign said an incident involving an immediate family member of Cheney’s had caused her to drop out.