New Jersey-based Johnson & Johnson and Merck were among the largest U.S. companies that failed a test to support American democracy following the Jan. 6, 2021, insurrection by supporters of Donald Trump, according to a report released Tuesday. A third New Jersey company, Prudential Financial, barely passed. The watchdog group Accountable.US, whose leadership includes several former Democratic aides, flunked 66 of the Fortune 100 companies for contributing to the campaigns of federal or state lawmakers who tried to overturn the results of the 2020 presidential election, voted against investigat…