As Donald Trump campaigned in Colorado over the weekend, he questioned the integrity of the state鈥檚 mail-ballot elections. He first raised the issue during a rally in Golden on Saturday and then continued during a 45-minute speech Sunday in Greeley, at the University of Northern Colorado. 

The Republican nominee for president  urged the crowd of roughly 3,000 people to 鈥済et those ballots in鈥� and then questioned whether those ballots 鈥渨ould be properly counted.鈥�

In Golden, Trump said he had 鈥渞eal problems with ballots being sent.鈥�

Those statements put him at odds with a fellow Republican 鈥� the person charged with seeing that Colorado鈥檚 elections will be fair and fraud-free, Wayne Williams, Colorado鈥檚 secretary of state. 
, his spokesperson, rebuffed Trump鈥檚 allegations and insisted that the electoral process in the state is 鈥渋ncredibly secure,鈥� adding that voter fraud is rare.
 

She said Colorado鈥檚 election process has safeguards, such as ballot drop-off boxes that are secure around the clock, to assurances that the state鈥檚 voting machines aren鈥檛 connected to the internet where they could be hacked. Fraud can happen, Bartels acknowledges, 鈥渂ut there is not wholesale rigging of the system.鈥�

Trump has been trailing Democratic presidential nominee Hillary Clinton in credible Colorado polls throughout October. The shows Trump four points behind Clinton.

But Trump鈥檚 senior advisor in Colorado, Patrick Davis, said Trump believes he can win Colorado. Trump has visited the state for at least 10 events this election cycle. That compares with Clinton鈥檚 three visits to the state. The state鈥檚 voters are roughly divided into three equal groups: Democrats, Republicans and unaffiliated voters. 

鈥淚 think in the end it will end up paying dividends for Donald Trump -- showing up and spending the time listening to us and talking with us about our concerns here in Colorado,鈥� Davis said.

Early voting indicates that so far, Democrats are more excited to vote. They have a 31,000 ballot advantage as of Oct. 31.  with 23 percent of ballots returned.

During his visit to Greeley, Trump touched on a few other familiar themes,  including immigration reform, building a wall along the U.S.-Mexico border and rebuilding the military. He also talked about ending the so-called 鈥渨ar on American energy鈥� he says his opponent is waging.

鈥淗illary Clinton also wants to put your miners out of work,鈥� he told the crowd at the university. 鈥淢y administration would put the miners back to work and we will unleash the power of clean coal, oil, natural gas and shale energy.鈥�

Outside the Bank of Colorado Arena at UNC, a group of nearly 100 protesters carried homemade signs reading 鈥淚鈥檓 a nasty woman鈥� and 鈥淭he White House is not a locker room 鈥� stay out.鈥�

Both were references to recent statements Trump has made about women. 

Greeley resident Sylvia Martinez attended the rally to protest what she says is Trump鈥檚 divisiveness and mistreatment of women.

鈥淭he fact that he鈥檚, you know, on audio recordings indicating what he does and likes to do to women without their permission 鈥� how is that acceptable to anybody?鈥� Martinez said. 鈥淚f that was anybody out on the street, they鈥檇 be in jail. So how is that okay for the candidate for the Presidency to say and to do? It鈥檚 not acceptable.鈥�