Salomon Melgen's conviction on Medicare fraud charges is unlikely to alter the landscape in the corruption case against U.S. Sen. Robert Menendez, according to legal observers.

Already facing an uphill battle due to a July 2016 U.S. Supreme Court ruling narrowing the scope of official conduct qualifying as an element of bribery, prosecutors in the Menendez case are unlikely to reap any benefit from Melgen's Medicare fraud prosecution, according to lawyers familiar with the case.

On April 28, a jury in West Palm Beach, Florida, convicted Melgen on all 67 counts he was facing, including health care fraud, submitting false claims and falsifying patient records. Melgen, an ophthalmologist, was accused in that case of prescribing unnecessary treatments, filing claims for procedures he never performed and charging for medicine he never ordered. The scheme defrauded Medicare of as much as $105 million, prosecutors said. Melgen faces 15 to 20 years in prison, and sentencing in the case is scheduled for July 14.