Sen. Mary Landrieu’s (D) campaign in the Louisiana Senate runoff election has fallen flat.
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The endangered Democrat’s “Hail Mary” effort to convince the Senate to approve the Keystone pipeline failed, undercutting her argument that she should be returned to the Senate for her clout.

She’s fallen back on an advertising strategy that seeks to portray her GOP opponent, Rep. Bill Cassidy (La.), as bumbling and incompetent.