Republican Paul Ryan from Wisconsin has been elected as the new Speaker of the US House of Representatives.
Hesitant to run at first, he eventually gained support of the majority of Republicans in Congress to succeed John Boehner of Ohio for the job.
The 45-year-old Mr Ryan was Republican presidential candidate Mitt Romney's running mate in the 2012 election.
He has helped determine budget and tax policy in Congress and said he only wanted the job to unify Republicans.
In his new position, he will be second in line to the presidency only behind the vice-president.
Among other responsibilities, the speaker acts as presiding officer over the lower chamber of Congress for administrative and business matters.