The National Republican Senatorial Committee (NRSC) is targeting a handful of Democratic incumbents and candidates in five battleground states with a series of billboards zeroing in on "Medicare for All" and the Green New Deal climate change plan.

The billboards, images of which were obtained first by The Hill, specifically target Democratic Sens. Gary Peters Gary Charles PetersRead Democrats' report countering Republicans' Biden investigation Top GOP senators say Hunter Biden's work 'cast a shadow' over Obama Ukraine policy Biden's six best bets in 2016 Trump states MORE (Mich.), Tina Smith Tina Flint SmithHealth officials tell public to trust in science The Hill's Campaign Report: Trump and Biden vie for Minnesota | Early voting begins in four states | Blue state GOP governors back Susan Collins GOP Senate candidate says Trump, Republicans will surprise in Minnesota MORE (Minn.), Doug Jones (Ala.) and Jeanne Shaheed (N.H.), as well as Democrat Mark Kelly, who’s vying for Sen. Martha McSally Martha Elizabeth McSallyThe Hill's Campaign Report: Presidential polls tighten weeks out from Election Day Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' New ABC/WaPost poll finds Trump edging Biden in Arizona, Florida MORE’s (R) seat in Arizona.

The cost of the ad buys are small, totaling just under five figures, according to a person familiar with the campaign.

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But taken together, the billboards offer the latest glimpse into the GOP’s strategy to maintain and expand their Senate majority in 2020 by tying Democrats to policy proposals that Republicans deem “socialist.”

“2020 Senate Democrat candidates will not get a pass on the extreme socialist policies being pushed by their party,” said Jesse Hunt, the communications director for the NRSC.

“Voters will be reminded of the millions of Americans that will lose jobs and private health insurance if Democrats take control.”

Medicare for All, in particular, has become a defining issue of the 2020 election cycle, as a growing number of Democrats have come to embrace the single-payer health care plan once considered a fringe proposal.

“Doug Jones silent as 2,472,100 Alabamians would lose their private health insurance,” one billboard in Alabama reads.

Jones is considered the most vulnerable Senate Democrat heading into a reelection bid in 2020. The Alabama senator, who won his seat after narrowly defeating Republican Roy Moore Roy Stewart MooreVulnerable Senate Democrat urges unity: 'Not about what side of the aisle we're on' Sessions hits back at Trump days ahead of Alabama Senate runoff Judge allows Roy Moore lawsuit over Sacha Baron Cohen prank to proceed MORE in a special election in 2017, has said that he does not support Medicare for All.

The NRSC is also targeting Kelly and Shaheen with billboards raising questions about their positions on Medicare for All. Kelly, like Jones, has said that he does not support the proposal, while Shaheen co-sponsored Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE's (I-Vt.) 2017 Medicare for All bill, though she has not backed current legislation on the subject.

In two other billboards, the NRSC goes after Peters and Smith, who have not yet said whether they support the Green New Deal, the sweeping proposal to combat climate change backed by some of the Democratic Party’s most progressive members.

“Ask Tina Smith about 430,478 Minnesota jobs at risk under the Green New Deal,” a billboard targeting Smith reads.