Has moment passed on privatizing air traffic control, an idea backed by American and Southwest?

Our grassroots efforts to stop the big airline's air traffic control privatization scheme are working, however the airlines and their friends in Congress are not giving up: "A Shuster [the bill's main backer] spokesman said 'nothing has changed' in the chairman’s priorities. A broader infrastructure bill could include ATC privatization if it’s left out of an FAA bill. And Republicans like Dallas Rep. Pete Sessions expect Shuster to double down on the effort."