Early in 2013, citing his concern for national issues, Roemer considered challenging [[U.S. Senator]] [[Mary Landrieu]] in her bid for a fourth term in 2014.<ref name=advocate/> Instead the principal Republican challenger to Landrieu was [[U.S. Representative]] [[Bill Cassidy]], then of Louisiana's 6th congressional district, who unseated the senator in a runoff election held on December 6, 2014. | Early in 2013, citing his concern for national issues, Roemer considered challenging [[U.S. Senator]] [[Mary Landrieu]] in her bid for a fourth term in 2014.<ref name=advocate/> Instead the principal Republican challenger to Landrieu was [[U.S. Representative]] [[Bill Cassidy]], then of Louisiana's 6th congressional district, who unseated the senator in a runoff election held on December 6, 2014. |