The president appeals to Americans' positivity instead of playing on their fears, Limbaugh claimed Thursday on "Hannity."
"Trump appeals to people's better interests," he said.
"This is what people don't understand about Donald Trump," Limbaugh added. "The man touches everybody's hearts -- talking about greatness, talking about inspiration, aspirational living, being 'great.'
"He's got a bond with his voters that nobody can break. He's got a bond that innate -- not everybody can create this bond."
Referring to the current slate of 2020 Democratic contenders, Limbaugh explained why he believes Trump would outshine them on the stage.
"There's not one person on that Democrat stage the last two nights that can even be onstage with Trump and not be overshadowed simply by his presence before he even opens his mouth," Limbaugh claimed.
"There's not one person on that Democrat stage the last two nights that can even be onstage with Trump and not be overshadowed simply by his presence before he even opens his mouth."
Regarding the tenor of the debates, the Missouri-born radio host described some of the candidates' platforms as "lunacy."
"If you define normalcy in any which way we would have in common, these people are lunatics," he said.
However, host Sean Hannity cautioned how Republican presidential candidates must usually, "thread the needle" electorally in order to win.
He claimed Republicans must routinely win Florida, North Carolina, Ohio, Michigan, Pennsylvania and Wisconsin.
"It's never going to be easy," he said.
As Hannity also noted, Limbaugh on Thursday celebrated the 31st anniversary of his radio program, "The Rush Limbaugh Show."