Conservative reporter calls Wisconsin poll showing Trump trailing Biden, Sanders a 'warning sign'

Conservative reporter Henry Rodgers called a recent poll showing President TrumpDonald John TrumpMarine unit in Florida reportedly pushing to hold annual ball at Trump property Giuliani clashes with CNN's Cuomo, calls him a 'sellout' and the 'enemy' Giuliani says 'of course' he asked Ukraine to look into Biden seconds after denying it MORE trailing former Vice President Joe BidenJoe BidenGiuliani clashes with CNN's Cuomo, calls him a 'sellout' and the 'enemy' Giuliani says 'of course' he asked Ukraine to look into Biden seconds after denying it Trump whistleblower complaint involves Ukraine: report MORE and Sen. Bernie SandersBernie SandersOvernight Health Care — Presented by Partnership for America's Health Care Future — Pelosi unveils signature plan to lower drug prices | Trump says it's 'great to see' plan | Progressives pushing for changes Krystal Ball calls on Sanders to follow Yang's lead on war on drugs Buttigieg calls Warren 'evasive' on Medicare for all MORE (I-Vt.) “very concerning.”

“This is a warning sign for Trump, he needs to step it up,” Rodgers, who is a reporter the conservative outlet The Daily Caller, told Hill.TV during an appearance on "Rising."

“Maybe he needs to take another trip down to Wisconsin, do a little rally” he added.

Rodger's comments come after a Marquette University Law poll released on Wednesday found Biden leading Trump by 9 points.

Fifty-one percent of Wisconsin voters said they supported Biden, while 42 percent of those polled voiced support for Trump.

The same survey found Sanders ahead of Trump by four points at 48 percent compared to Trump’s 44 percent support.

Meanwhile, Trump tied with Sen. Elizabeth WarrenElizabeth Ann WarrenOvernight Health Care — Presented by Partnership for America's Health Care Future — Pelosi unveils signature plan to lower drug prices | Trump says it's 'great to see' plan | Progressives pushing for changes Buttigieg calls Warren 'evasive' on Medicare for all Sanders hits 1 million donors MORE (D-Mass.), each receiving 45 percent support. 

Wisconsin is considered a must-win state for Democrats in the 2020 elections.

President Trump unexpectedly won the state’s 10 electoral votes in the 2016 election by a narrow margin over Hillary ClintonHillary Diane Rodham ClintonGiuliani says 'of course' he asked Ukraine to look into Biden seconds after denying it Sanders hits 1 million donors Democrats will not beat Trump without moderate policy ideas MORE.

—Tess Bonn