Former House Majority Leader Dick Armey (R-Texas) will give a keynote address at the House GOP retreat later this month, the House Republican Conference confirmed Friday. Armey, now the chairman of FreedomWorks, has become an important leader in the grass-roots “tea party— movement. Republicans have courted the anti-tax tea partiers, hoping to harness their energy in the 2010 election. Members of the movement assembled in large numbers all over the country last year to protest the Democratic agenda. President Barack Obama is also scheduled to give a speech at the retreat. The Republican retreat will take place from Jan. 28-30 at the Renaissance Baltimore Harborplace Hotel in Baltimore. It could not be immediately confirmed when Armey or Obama will address the conference.