Menendez and Melgen's overlapping interests have repeatedly raised questions in recent months. Menendez was compelled to reimburse $58,000 for two flights to the Dominican Republic aboard Melgen's private jet for personal trips in 2010 that he previously had failed to report, prompting scrutiny by the Senate Ethics Committee.
Menendez has also acknowledged contacting U.S. health agencies to question their billing practices and policies amid a dispute between Melgen and federal authorities. And Menendez was a key sponsor of a natural gas bill that could have aided a Melgen investment in a Florida company that markets a conversion system for natural gas truck engines.
Melgen has given more than $14,000 directly to Menendez's political campaigns since the late 1990s and, through his eye clinic, donated $700,000 last year to a "super" political committee that supported Democratic party Senate candidates. The committee, in turn, spent $582,000 to back Menendez's re-election effort.
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