Republican candidates are making immigration one of the defining issues of the 2026 midterm elections, investing millions of dollars in advertising centered on border security, immigration enforcement, and public safety.

According to recent campaign advertising data, Republican campaigns and allied organizations have devoted substantially more resources to immigration messaging than Democrats, signaling the party’s belief that the issue remains a powerful motivator for voters.

Republicans Significantly Outspend Democrats

Advertising data from the first half of 2026 shows Republicans have aired nearly 300 television advertisements mentioning immigration or focusing entirely on immigration policy.

By comparison, Democratic candidates and affiliated groups have aired approximately 60 immigration-related ads during the same period.

Republican organizations have reportedly invested more than $50 million in immigration-focused advertising nationwide, while Democratic spending on similar messaging has totaled roughly $17 million.

The ads have appeared across dozens of congressional, gubernatorial, and Senate races throughout the country.

Border Security Remains a Core GOP Message

Most Republican campaign advertisements emphasize themes including:

• Border security
• Immigration enforcement
• Crime prevention
• Illegal immigration
• Support for Immigration and Customs Enforcement (ICE)
• Increased funding for border security

Many campaigns also connect immigration with broader concerns about public safety and the economy, arguing that stricter immigration enforcement contributes to stronger communities and fiscal responsibility.

Some candidates have also promoted proposals involving birthright citizenship, voter identification, and employment restrictions related to certain visa programs.

Democrats Take a Different Approach

Democratic candidates have generally focused less on immigration in their television advertising.

Instead of promoting detailed immigration policy proposals, many Democratic campaigns have emphasized:

• Healthcare
• Economic issues
• Protection of immigrant communities
• Criticism of expanded immigration enforcement
• Personal immigration stories

In states experiencing increased immigration enforcement activity, some Democratic candidates have criticized recent federal policies and called for reforms to immigration agencies.

However, overall advertising spending suggests immigration has not become as central to Democratic campaign messaging as it has for Republicans.

Why Republicans See Immigration as a Winning Issue

Political strategists note that campaign advertising is designed less to persuade undecided voters than to energize existing supporters and shape the issues dominating an election.

For Republicans, immigration continues to intersect with several major voter concerns, including:

• Border security
• Crime
• Government spending
• Employment
• National security

Campaigns believe these themes resonate strongly with many Republican primary and general election voters.

Polls Show a More Nuanced Public View

Public opinion on immigration remains divided.

Recent national polling indicates that while many Americans support stronger border security, a majority also favor some form of legal pathway to citizenship for undocumented immigrants who meet certain requirements.

Views differ sharply along partisan lines.

Republican voters generally express stronger support for expanded deportations, increased Border Patrol staffing, and stricter immigration enforcement.

Democratic voters are more likely to support immigration reform that combines border security with expanded legal pathways.

Looking Ahead to November

As primary elections give way to general election campaigns, immigration is expected to remain one of the Republican Party’s most prominent campaign themes.

Democrats are likely to continue emphasizing healthcare, affordability, and economic issues while responding selectively to immigration debates.

With millions already spent on campaign advertising, immigration appears poised to remain one of the defining political issues shaping the 2026 midterm elections.