<p>ALBANY - Gov. Paterson, defying the liberal wing of his Democratic Party, has chosen little-known, NRA-backed, upstate Congresswoman Kirsten Gillibrand to succeed Hillary Rodham Clinton as New York's junior senator, it was learned last night.</p>
<p>The surprising - and, for many Democrats shocking - decision to pick the conservative Gillibrand, 42, from Hudson in Columbia County, was disclosed by the governor in calls to party officials and some members of the state's congressional delegation, many of whom said they were unhappy with the selection, sources said. Gillibrand, a mother of two occasionally resented by colleagues for being an aggressive self-promoter, was strongly backed for the post by Charles Schumer, the state's senior senator, who said a woman and an upstater was needed on next year's ticket.</p>