Trump files Nevada Voting Lawsuit

(CNN) In a sign that the legal team for the Trump campaign is aggressively laying the groundwork for potential legal challenges -- big and small -- lawyers have gone to state court in Nevada in an early vote dispute.

In legal briefs filed last night, Trump lawyers are asking for relief in case “the election of presidential electors from the State of Nevada is contested.”

They are suing Joe P. Gloria, the Clark County registrar of voters, over a decision they allege he made to keep polling locations open “two hours beyond the designated closing time.” The lawsuit targets polling places in the greater Las Vegas area that have larger minority voting precincts.

Dan Kulin, a spokesperson for the county, told CNN that no early voting stations extended their closing times. They did, however, process voters who were in line at closing time to allow as many people to vote as possible.

Trump lawyers are asking for an order to have the pertinent early vote ballots not to be “co-mingled or interspersed” with other ballots.

“From the polling, it appears that Nevada is so close that the Trump campaign thinks it’s worth challenging any violation in voting protocol. The numbers that came in could represent several thousand people across the four precincts, which could determine who wins the electoral college vote or change the Senate race,” said Robert Lang of the University of Nevada, Las Vegas. He said the Trump campaign is “smart to put a marker down for a future challenge, considering what happened in 2000 in Florida."

Officials with the Republican National Committee and Trump's campaign declined to further discuss their action with reporters on a conference call early Tuesday afternoon.

Nevada's Republican Party chairman, Michael McDonald, told a Trump audience in Reno on Saturday that polling locations in Clark County were kept open late so that a "certain group" could vote.

Clark County, which includes the suburbs of Las Vegas, has a large Hispanic population and could figure prominently in who wins the White House.