WASHINGTON — U.S. Sen. Robert Menendez’s actions on behalf of Dr. Salomon Melgen were “appropriate and lawful,” his spokeswoman said today. The spokeswoman, Tricia Enright, was responding to reports by CNN, citing people briefed on the case, that Menendez would soon be indicted on corruption charges. UPDATE: Menendez to speak about alleged corruption charges Menendez (D-N.J.)…