TL;DR, Lhota says the city leases the subway to the MTA, and thus should contribute more financially to the repairs needed to get it back in shape.
Let’s stop the diversions and obfuscation and start spending the resources the MTA has on the repairs and maintenance that will keep New Yorkers moving.” And the reactions to the latest round of “who controls the subway” were a mixture of confusion, disbelief, and anger: the governor is brazenly lying about the state's obligation to fund transit because the mayor was mean about his fancy light show Got a preview of Cuomo's plan to fix MTA.
As long as petty spats are prioritized over actually fixing the problem, city residents will continue to suffer.
And it seems that this has already led to a dip in Cuomo’s popularity among New Yorkers; according to a recent poll, the governor’s approval ratings have slipped in recent months, with many of those polled disapproving of his handling of the current MTA crisis.
With the subway system in a state of emergency, in theory, money will be spent on making the trains better—though how that will look is anyone’s guess.