sentences:  On February 17, 2008, the party merged with the Democratic Party to form the United Democratic Party.The party was formed when loyalists to president Roh Moo-hyun in the Uri Party chose to break ranks from other party members who showed lukewarm support for the administration.Some 80 out of 152 lawmakers of the Uri Party joined the new party, a conservative-liberal minority group from the Hannara Party (led by Son Hak-Gyu), and a group of progressive civil rights' group from outside South Korean politics also joined, seeking to complete political reforms.