Let’s face it: Republicans are staring at a wipeout in the midterm elections. The economy is battered, GOP leadership looks unfocused, and swing voters show signs of fatigue with the endless drama surrounding Trump. The trend lines point in one direction.But another truth sits alongside it: Republican voters still want a reason to show up. The base will not match the left’s turnout intensity unless the party gives them a fight worth having. And no issue energizes the conservative electorate more than immigration. If Republicans intend to use their remaining political capital, this is where to use it.At a minimum, Trump should return to his original 2015 promise: Pause immigration and restore sanity to a system voters believe is broken beyond recognition.Last week, Rep. Chip Roy (R-Texas) introduced exactly that fight.What the PAUSE Act doesRoy’s PAUSE Act freezes all legal immigration — except temporary tourist admissions — until the federal government establishes permanent enforcement against illegal entry and against categories of immigration voters have opposed for years. The bill sets clear conditions for lifting the moratorium.Reversing Plyler v. Doe, allowing states and localities to deny illegal aliens access to public schools.Reforming birthright citizenship so that minors receive citizenship only when at least one parent is a U.S. citizen or green card holder.Ending chain migration and the diversity visa program; limiting entries to spouses and unmarried minor children; ending extended-family preference categories.Prohibiting the entry of Sharia-law adherents, Chinese Communist Party members, known or suspected terrorists, and members of foreign terrorist organizations.Barring noncitizens from accessing means-tested federal benefits such as SNAP, SSI, TANF, Medicaid, Medicare, WIC, federal student loans, and public housing.Ending adjustment of status for H-1B visa holders and abolishing the unconstitutional optional practical training program that displaces American tech workers.The bill accomplishes all of this in fewer than 10 pages. Original co-sponsors include Reps. Keith Self (R-Texas), Brandon Gill (R-Texas), Andy Biggs (R-Ariz.), Lauren Boebert (R-Colo.), Eli Crane (R-Ariz.), and Andy Ogles (R-Tenn.).A long-delayed agendaConservatives have pushed these reforms for nearly two decades. Some ideas surfaced in the Trump years through executive actions, but courts blocked several and entrenched others — especially anchor-baby citizenship and taxpayer-funded K-12 education for illegal aliens.Other essential reforms, such as ending optional practical training, halting visas from China, or barring Sharia-law adherents, were never attempted.RELATED: Trump can’t call it ‘mission accomplished’ yet Photo by Anna Moneymaker/Getty ImagesThe genius of Roy’s bill is simple: It creates a standing incentive for courts, presidents, and future Congresses. If judges want legal immigration to continue, they must revisit the policies that created the crisis in the first place.Staring at political realityIf Trump focused his attention on this bill — and forced congressional Republicans to choose — he could unite conservatives heading into primary season. A transformational immigration fight would energize GOP voters at a moment when the party shows weakness across the map.Democrats have over-performed by an average of 15 points in recent special elections. That surge alarmed Republicans enough that they pulled Rep. Elise Stefanik (R-N.Y.) from consideration for U.N. ambassador for fear of losing her district, which Trump carried by 15 points. Democrats are now pouring money into Tennessee’s 7th Congressional District, which Trump carried by 20. A party that cannot defend safe seats is a party in trouble.If Republicans can’t win in red America during a bad economy, it’s not because voters demand new talking points. It’s because the party has failed to deliver on the core issues that animate its base.RELATED: The right must choose: Fight the real war, or cosplay revolution online wildpixel via iStock/Getty ImagesThe choice aheadTrump could offer a fresh economic vision or finally follow through on repealing Obamacare. But at a minimum, he should return to his original 2015 promise: Pause immigration and restore sanity to a system voters believe is broken beyond recognition.The window is closing. If Republicans refuse to use the power they still possess, they will lose it — not gradually, but suddenly.The PAUSE Act gives them a chance to reverse that trajectory. The question is whether they will take it.