NEW : Newly sworn - in Brown stresses opposition to President Obama 's fiscal policies . NEW : Brown noncommittal on allegations of filibustering over some Obama nominees . Scott Brown is sworn into office Thursday , becoming crucial 41st GOP vote . Brown won a special election to fill the remainder of the late Senator Ted Kennedy 's term .
NEW : Newly sworn-in senator stresses opposition to President Obama 's fiscal policies . NEW : Brown noncommittal on prospect of filibustering over some Obama nominees . Scott Brown is sworn into office Thursday , becoming crucial 41st GOP vote . Brown won a special election to fill the remainder of the late Sen. Ted Kennedy 's term .