Washington (CNN) - Republican Rep. Dean Heller was sworn in as the Nevada's new senator Monday by Vice President Joe Biden.
Heller was appointed by Republican Nevada Gov. Brian Sandoval to fill the seat vacated by Sen. John Ensign, who resigned in April amidst a Senate ethics investigation.
The two-term congressman, who had announced he would run for the seat in 2012, will now be the incumbent Republican in the next election.
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