Public opinion on a Southern-border wall in the U.S., by political party 2020

In 2020, 86 percent of surveyed Republicans said that they were in favor of building a wall along the U.S.-Mexico border in order to try to stop illegal immigration. In comparison, 36 percent of Independents and 79 percent of Democrats opposed building a wall along the southern border.

Immigration figures

Building a wall along the U.S.-Mexico border to stop illegal immigration was a major promise of President Donald Trump’s 2016 presidential campaign. President Trump maintains that a wall would stop illegal immigration into the U.S., despite the fact that in 2016, the majority of undocumented migrant arrivals occurred by overstaying visas rather than passing unchecked through a border. According to the United States Border Patrol, alien apprehensions into the United States reached a peak in 2000 at over 1.6 million apprehensions. This figure has since decreased to just over 404,000 in 2018.

The 2019 government shutdown

At the end of 2018, President Trump demanded that Congress pass a federal appropriations bill including almost six billion U.S. dollars in order to fund construction of a border wall, which Congress refused to do. This triggered a lapse in federal funding, causing the longest government shutdown in American history, at 35 days long.

Do you favor or oppose building a wall along the US-Mexico border to try to stop illegal immigration?

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Release date

March 2020


United States

Survey time period

March 1 to 3, 2020

Number of respondents

1,488 respondents

Age group

18 years and older

Method of interview

Online interview

Supplementary notes

Total sample size was 1,500 respondents

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Statistics on "Immigration in the United States"

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