Gary Aldrich, a former FBI agent whose widely discredited expose of the Clinton White House launched him into a second career on the margins of the conservative movement, is reinventing himself yet again - this time as a player in the grassroots tea party movement. Aldrich in recent months has aggressively worked the tea party circuit, advising activists how to avoid liberal media attacks, seeking support from some of the movement’s most prominent leaders, throwing himself into inter-movement skirmishes – and even boasting of using his FBI-honed skills to investigate rivals of a group he endorsed.