A broken ankle will prevent Sen. Dianne FeinsteinDianne FeinsteinFeinstein after dinner with Clinton: She has 'accepted' her loss Dems fear Trump undermining US stature Dems push for panel to probe Russian interference in election MORE (D-Calif.) from attending her party's convention in Denver next week, the senator announced this afternoon.

Feinstein was walking with Rep. Ellen Tauscher (D-Calif.) on a trail in Tahoe forest Friday, the day before an environmental summit at Lake Tahoe, when she slipped and broke her ankle, the senator said.

"My doctor has advised me not to travel in the short-term, and so, regretfully, I am unable to attend what will surely be an historic convention in Denver," Feinstein said. "I was very much looking forward to chairing the California Delegation, and I offer my best wishes to California