WASHINGTON (Reuters) - With time running short, the White House said on Monday it was pursuing a last-ditch plan with Congress to raise the U.S. debt ceiling and avert a default that could plunge global financial markets into chaos. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=Ndnr1PFBuCw:UI9yYBh9eCg:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=Ndnr1PFBuCw:UI9yYBh9eCg:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/Ndnr1PFBuCw)