I smell a big fat lawsuit.
Not a big enough lawsuit to suit me.The right lawsuit would target the FCC and all of its licensees, not just ABC. That lawsuit would demand damages in the billions of dollars and firm regulation by the FCC of the licensee's in-kind political contributions.
"Journalism" is properly a singular noun. It is singular because you can't be accepted as a journalists unless you accept that all journalists are objective. IOW, all journalists will mercilessly attack anyone who claims to be a journalist but who questions the objectivity of a journalist. That means that although journalism has many organs, journalism has a single viewpoint - the conceit that journalism and the public interest are identical.
That means that "objective journalism" is a political party. It follows that the broadcasting of journalism is political advertising on the government's dime, in violation of the Constitution and campaign finance laws.