A Democratic newcomer is trying to pull off an upset victory for an open U.S. House seat in Arizona that has been held by Republicans since the early 1980s.
Hiral Tipirneni is an emergency room physician and a cancer research advocate, but many observers see her odds as slim against former state Sen. Debbie Lesko.
They face off in Tuesday's special election to replace former Rep. Trent Franks in Arizona's 8th District, who resigned in December amid sexual harassment allegations.
Lesko, a Republican, has represented parts of the district since 2009.
She has an extremely strong base of support in a district Franks had locked up since 2003.
