Hillary and Bill Clinton are again teaming up on Barack Obama – this time saying the first-term US lawmaker, whom they have derided as inexperienced, would be a strong running mate on a Democratic presidential ticket headed by the former first lady.

US Democratic presidential candidates Senator Hillary Clinton (D-NY) and Senator Barack Obama (D-IL) square off in the last debate before the Ohio primary in Cleveland, Ohio, February 26, 2008. [Agencies]

In talking up a joint ticket, the Clintons may be seeking the upper hand, attempting to put her in consideration for the top of the ticket when she so far has failed to win the votes necessary to assure that she would face Republican presidential candidate John McCain in the November election.