"Mr. President you know a little something about gold", Heller said.
Today President Donald Trump is holding his third rally in as many days, this time in Elko, Nevada.
Trump noted that despite repeatedly running for president, Biden never got more than one percent support in the polls.
"Now the last was for middle-income and for business and our business is now coming back because of it", Trump said.
"She said 'Creepy Joe, '" Trump said, pointing her out in the crowd.
Trump said Heller's challenger Rosen was indebted to the Democratic establishment and opposed the nomination of Supreme Court Justice Brett Kavanaugh.
Wrapping up a three-day visit to Western states with midday rally in rural Elko, Trump lent support for Dean Heller, considered the most vulnerable GOP senator on the November 6 ballot as Republicans hope to retain their Senate majority.
Trump also used the rally as an opportunity to speak about the caravan of migrants headed for the Southern border, telling supporters that, "The Democrats want caravans. Not looking like a blue wave".
Rosen, a freshman congresswoman from the Las Vegas-area, is challenging incumbent Republican U.S. Sen.
Trump also accuses Democrats of backing an "extremist immigration agenda" and claims that he's "already figured out" how to solve the complex issue of immigration, though he's giving no details.
Trump said that Biden only had 193 people at his campaign rally in Las Vegas. He said values long admired by other countries helped the United States build "the great alliances in literally the history of the world" over the past 70 years. But Biden says Trump is "all about himself". Pressure on Republicans continues to mount as they'll attempt to maintain control of Congress.
The 75-year-old former DE senator, two-time candidate for the Democratic presidential nomination, vice-president to Barack Obama and frontrunner among possible 2020 candidates was speaking in support of Jacky Rosen, who is in a tight Senate race with the Republican Dean Heller.
The rally outside the union hall north of the Las Vegas Strip included appearances from comedian Billy Eichner and a mariachi band and came as two weeks of early voting kicked off in the state.