Sen. Robert Menendez (D-N.J.) is denying allegations that a major donor supplied him with free trips to the Dominican Republic where he engaged with underage prostitutes.

Those accusations, reported on conservative Web sites before the 2012 election, have resurfaced due to an FBI raid on the home of Dr. Salomon Melgen, a Menendez contributor. The doctor faces a $11.1 million IRS lien for unpaid taxes.