Former President Donald Trump is seeking to sway voters in Nevada with his pledge to wipe out taxes on tipped wages if elected, but whether his vow will help him win the state in November remains to be seen.

Trump’s surprise announcement came during a Sunday rally in Las Vegas in what is seen as a direct appeal to voters in the state since Nevada’s economy is driven by tourism, thanks to the gambling and entertainment destinations of Las Vegas and Reno.

“This is the first time I’ve said this, and for those hotel workers and people that get tips, you’re going to be very happy,” Trump said. “When I get into office, we are not going to charge taxes on tips — on people making tips.”

Some strategists and advisers agree that Trump’s promise of tax-free tips will help move the needle in the Silver State.