Until quite recently Teton County voted Republican along with most other Eastern Idaho counties. However, since 2004, the county has strongly trended towards toss-up status. In 2008, it was one of three Idaho counties to favor Barack Obama,2008 - General Election Teton County despite giving George W. Bush a 23-point victory only four years earlier.2004 Presidential General Election Data Graphs - Idaho The margin was narrow (39 votes) and Obama lost the county to Mitt Romney in 2012 by over five hundred votes; Donald Trump outpolled Hillary Clinton by just eight votes in 2016, the smallest numerical margin in the country. Teton backed Democrat Joe Biden in the 2020 election; he won by 7.3 percentage points, garnering the highest vote share for any Democrat since 1948.
Until quite recently Teton County voted Republican along with most other Eastern Idaho counties However since 2004 the county has strongly trended towards toss-up status In 2008 it was one of three Idaho counties to favor Barack Obama2008 - General Election Teton County despite giving George W Bush a 23-point victory only four years earlier2004 Presidential General Election Data Graphs - Idaho The margin was narrow (39 votes) and Obama lost the county to Mitt Romney in 2012 by over five hundred votes; Donald Trump outpolled Hillary Clinton by just eight votes in 2016 the smallest numerical margin in the country Teton backed Democrat Joe Biden in the 2020 election; he won by 73 percentage points garnering the highest vote share for any Democrat since 1948