Boost for Obama as three more superdelegates pledge support

BARACK Obama’s sprint to the Democratic nomination received another boost yesterday as three more superdelegates pledged their support, including one who dropped his backing for Hillary Clinton’s faltering White House bid.

The two Democrats have been lobbying superdelegates — who are not bound by state results — to line up behind them in the final push for the nomination.

While Senator Obama has presented himself, albeit subtly, as the inevitable candidate, Clinton’s efforts have been to ward off further defections and convince the crucial voting block that her candidacy still retained signs of life.