A new poll of Florida Republican primary voters finds a tightening race between the Sunshine State’s two favorite sons in the 2016 GOP presidential primary. According to St. Leo University’s Polling Institute, former governor Jeb Bush has 30 percent support among likely Republican primary voters in Florida, while Marco Rubio, the state’s sitting junior senator, has 24 percent support. That’s a surge of eight points for Rubio since St. Leo’s last poll of the GOP primary in March, when the younger Republican had 16 percent support to Bush’s 31 percent.

It’s worth noting that since the March poll, Rubio has declared his candidacy, while Bush remains in the exploratory phase and is not officially a candidate.