Senate Democratic Leader Charles Schumer Chuck SchumerPelosi orders Capitol flags at half-staff to honor Ginsburg Ginsburg in statement before her death said she wished not to be replaced until next president is sworn in Democrats call for NRA Foundation to be prohibited from receiving donations from federal employees MORE’s (N.Y.) efforts to unify Democrats and prevent a shutdown are complicated by lawmakers with presidential hopes who are pushing for a hard-line stance against any short-term spending measure that doesn’t protect certain young immigrants from deportation.

Senate Democrats such as Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE of New Jersey, Kirsten Gillibrand Kirsten GillibrandSuburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits The Hill's Campaign Report: 19 years since 9/11 | Dem rival to Marjorie Taylor Greene drops out | Collin Peterson faces fight of his career | Court delivers blow to ex-felon voting rights in Florida MORE of New York and Kamala Harris Kamala HarrisThe Hill's Campaign Report: Trump and Biden vie for Minnesota | Early voting begins in four states | Blue state GOP governors back Susan Collins Kamala Harris: Black Americans have been 'disproportionately harmed' by Trump Biden town hall draws 3.3 million viewers for CNN MORE of California have signaled they will not support a short-term spending bill that leaves the fate of these immigrants, often called Dreamers, up in the air.

All three potential presidential candidates, along with two others, Sens. Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Mass.) and Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.), voted against a recent four-week spending stopgap that did not address the plight of recipients of the Deferred Action for Childhood Arrivals (DACA) program.

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They argue that taking a principled stand won’t hurt Democrats in tough races because there’s strong bipartisan support for protecting Dreamers.

One Democrat close to Harris said the senator is open to a deal, “but she wants to see what it looks like.”

“She has said she wouldn’t vote for any spending bill without DACA being addressed,” the Democrat said. “She’s open to bipartisan negotiation, but she’s not going to vote for a bill until DACA is addressed beforehand.”

After all, the Democrat added, “it’s up to Republicans. They control the House, the Senate and the White House. It’s their job to fund the government.”

Democrats up for reelection in states won by President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE in 2016 have sung a different tune.

Sen. Joe Manchin Joseph (Joe) ManchinBiden promises Democratic senators help in battleground states Senate leaders quash talk of rank-and-file COVID-19 deal OVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' MORE (D), who saw Trump win his home state of West Virginia by 42 points, says he won’t vote against a short-term spending measure that doesn’t include legislation to replace DACA.

“We’re trying to find [a deal], but shutting down the government is not going to help them,” Manchin told reporters Tuesday.

Democratic aides brush off any sense of friction, saying Schumer’s job isn’t really that tough on the issue because Republicans will take the blame for a shutdown given their control of both ends of Pennsylvania Avenue.

Senior Democratic leadership aides are trying to assure jittery incumbents. They emphasize that Trump’s combustible remarks — he told officials at a White House meeting last week that the United States shouldn’t take more immigrants from “shithole countries” — are giving them more leverage in the blame game.

“At this point, the blame for any catastrophe this week is squarely on the president’s back,” said a Democratic leadership aide. “Senate Democrats have been reasonable, we compromised on the wall, on chain migration, and ended the diversity lottery in a bipartisan deal.”

A bipartisan group of senators including Senate Democratic Whip Dick Durbin Richard (Dick) Joseph DurbinMcConnell focuses on confirming judicial nominees with COVID-19 talks stalled Senate Republicans signal openness to working with Biden Top GOP senator calls for Biden to release list of possible Supreme Court picks MORE (Ill.) and Republican Sens. Jeff Flake Jeffrey (Jeff) Lane FlakeRepublican former Michigan governor says he's voting for Biden Maybe they just don't like cowboys: The president is successful, some just don't like his style Bush endorsing Biden? Don't hold your breath MORE (Ariz.) and Lindsey Graham Lindsey Olin GrahamSenate Republicans face tough decision on replacing Ginsburg Democratic senator calls for eliminating filibuster, expanding Supreme Court if GOP fills vacancy What Senate Republicans have said about election-year Supreme Court vacancies MORE (S.C.) plan to introduce a compromise immigration bill Wednesday. The legislation, however, failed to win Trump’s support last week.

Democrats won a victory the last time the government shut down in 2013 because of a fight over ObamaCare, but the present situation poses more risk.

Control of the Senate in 2019 depends on the reelection of 10 Democrats in states that voted for Trump, including Indiana, Missouri, Montana, North Dakota and West Virginia.

Some allied Democratic strategists agree with leadership aides who predict that vulnerable centrists have little to fear because Republicans would likely take the blame for a shutdown.

“I think fundamentally this is a bigger problem for Republicans than it is for Democrats,” said Jon Selib, a Democratic strategist who served as chief of staff to then-Sen. Max Baucus Max Sieben BaucusBottom line Bottom line The Hill's Morning Report - Presented by Facebook - George Floyd's death sparks protests, National Guard activation MORE (D-Mont.).

He believes a shutdown over immigration would pose a bigger problem for Sen. Dean Heller Dean Arthur HellerOn The Trail: Democrats plan to hammer Trump on Social Security, Medicare Lobbying World Democrats spend big to put Senate in play MORE, a vulnerable Republican whose home state of Nevada has a large Hispanic population, than any Democrat up for reelection.

“How would you like to be Dean Heller this week? He’s pinched up against a Hispanic constituency who has proven to turn out and vote and a hard-right-wing base. It’s a really difficult issue for him,” Selib said.

But some Democratic strategists warn that a high-profile fight over immigration is not a smart fight in the states that will determine the next Senate majority.

They say candidates such as Sens. Jon Tester Jonathan (Jon) TesterPence seeks to boost Daines in critical Montana Senate race This World Suicide Prevention Day, let's recommit to protecting the lives of our veterans Filibuster fight looms if Democrats retake Senate MORE (D-Mont.), Heidi Heitkamp Mary (Heidi) Kathryn HeitkampCentrists, progressives rally around Harris pick for VP 70 former senators propose bipartisan caucus for incumbents Susan Collins set to play pivotal role in impeachment drama MORE (D-N.D.) and Joe Donnelly Joseph (Joe) Simon DonnellyEx-Sen. Joe Donnelly endorses Biden Lobbying world 70 former senators propose bipartisan caucus for incumbents MORE (D-Ind.) are better off debating the recently passed tax-reform bill, which polls suggest is unpopular and seen as tilted toward the rich.

“They’ve got to get back to the issues that impact constituents in their states,” said Steve Jarding, a Democratic strategist and former senior adviser to the Democratic Senatorial Campaign Committee. “If immigration is not a big issue in their state, why end up talking about it?”

A survey released Tuesday by Hart Research Associates, a Democratic polling firm, showed a majority of respondents in 12 Senate battleground states want to protect Dreamers from deportation and would see Trump and congressional Republicans as more to blame for a shutdown.

Democrats fighting for their political lives aren’t in the mood to take any chances.

Donnelly, who is up for reelection in a state that gave Trump a 19-point margin of victory over Democratic nominee Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE, said Monday that “Congress needs to do its job and work in a bipartisan way to keep the government open and find a solution to protect DACA youth.”

Tester last month called threatening a government shutdown to gain leverage on immigration “stupid talk.”

“You don’t want to shut the government down,” he warned.

And Sen. Claire McCaskill Claire Conner McCaskillDemocratic-linked group runs ads in Kansas GOP Senate primary Trump mocked for low attendance at rally Missouri county issues travel advisory for Lake of the Ozarks after Memorial Day parties MORE (D) of Missouri, a state Trump won by nearly 20 points, warned her leadership not to draw a line in the sand over immigration. She also expressed some frustration with the influence of presidential politics.

“We’ve got people running for president all trying to find their base, and then you’ve got people from Trump states that are trying to continue to legislate the way we always have — by negotiation,” she said.

Schumer is also under pressure from activists who were outraged that the December spending bill tiptoed around the immigration debate.

More than a dozen Democratic lawmakers in the Congressional Hispanic Caucus marched over to Schumer’s office in the Capitol last month to ask why he wasn’t rallying his caucus to vote down the spending measure.

Twenty-nine Democrats and Sanders — more than half the Senate Democratic caucus — ended up voting against the measure.