PROVIDENCE — Rhode Island's Democratic governor won her party's nomination for a second term in Wednesday's primary, overcoming a spirited but poorly funded challenge, while the mayor of the state's second-largest city earned the GOP nomination for another shot at the governor's seat in November.

Gov. Gina Raimondo fended off a challenge from the left by former Secretary of State Matt Brown. Mayor Allan Fung beat Patricia Morgan, a state lawmaker. Fung came in 4.5 points behind Raimondo in a three-way race in 2014.

Voters in Rhode Island also selected nominees for U.S. Senate, U.S. House, lieutenant governor and other offices in a rare Wednesday vote. About 145,000 people cast ballots, or nearly 20 percent of voters, according to the state Board of Elections. The turnout in recent midterm primaries has hovered around 20 percent.

Raimondo made the case for a second term by highlighting the state's improving economic fortunes, including a falling unemployment rate, as well as new job training programs and free community college tuition started during her tenure. Brown, who last held office over a decade ago, has been pushing himself as the grassroots alternative, and has been hammering Raimondo for her close corporate ties.

Raimondo has raised $7.7 million, 20 times Brown's total. She took aim at Fung in her victory speech, saying he won't stand up to President Donald Trump and he opposes her administration's job creation policies. Her supporters chanted "four more years."

Malcolm Griggs headed to the polls in Warwick to vote in the Democratic primary for Raimondo, who he feels has done a good job helping the state's economy, attracting businesses and augmenting businesses already in Rhode Island.

"She put people to work and that matters," said Griggs, 58, who works in the banking industry.

On the Republican side, Fung has tried to keep a low profile in the primary, putting out few detailed policy proposals, dodging questions about where he stands on various issues and agreeing to just one debate on a small radio station with limited reach. Raimondo also did not participate in debates.

Fung beat Morgan, who leads the tiny House minority caucus in the overwhelmingly Democratic General Assembly. He said his victory is a sign that Rhode Islanders are ready to take back the state from insiders and "big shots" and reject the status quo. He said he's ready to "lead this revolution."

Wednesday's winners are expected to face another three-way race Nov. 6, with former Republican lawmaker Joe Trillo, who chaired Trump's 2016 campaign in Rhode Island, running as an independent.

The most closely watched down-ticket race was for lieutenant governor, which pits incumbent Democrat Dan McKee against self-described progressive state lawmaker Aaron Regunberg. The position has few official duties, but officeholders have used it as a way to advance certain causes on a statewide level. McKee clung to a narrow lead but the race was too close to call Wednesday evening.

Former U.S. Attorney Peter Neronha was unopposed for the Democratic nomination for Rhode Island attorney general, virtually guaranteeing him the job. Republicans didn't put forward a candidate and Neronha faces no significant opposition in November.

In congressional races, Democratic Sen. Sheldon Whitehouse and Rep. David Cicilline easily won their primaries. Rep. Jim Langevin was unopposed in the Democratic primary.

The 62-year-old Whitehouse is a leading voice in the Senate pushing to do more to address climate change. He has also been critical of President Donald Trump on a number of issues, including by pushing to protect special counsel Robert Mueller's Russia investigation.

Nearly half of all 782,000 Rhode Island voters are unaffiliated with a party and may choose to vote in either primary. Around 308,000 voters are registered Democrats, while 92,000 are registered Republicans.