STERLING HEIGHTS, Mich. (AP) -- An embattled Hillary Rodham Clinton is urging the party leaders who are key to the Democratic presidential race to take a hard look at her West Virginia win and slow their march to Barack Obama.

Clinton trounced her rival Tuesday in a primary that did little if anything to knock Obama off stride as he approaches the delegate totals needed to give him the nomination.

It did, however, expose in stark terms his disadvantage with blue-collar voters, fueling Clinton's last-gasp argument to party VIPs that she's the Democrat with broad appeal against Republican John McCain.

"Choose who you believe will make the strongest candidate in the fall," she said at her Charleston rally in a pitch aimed at superdelegates. She was returning to Washington to meet Wednesday with some of them.

"The White House is won in the swing states," she said, "and I am winning the swing states."

Obama isn't ceding the latter point.