Available polling data from multiple reputable sources indicates that a majority of Americans do not approve of Trump's deployment of National Guard troops to Washington, DC.
A majority of Americans approve Trump's deployment of National Guards to Washington, DC.

8/27/25 - Majority Of Voters Oppose Deploying National Guard To D.C., Quinnipiac University National Poll Finds; Support Drops For U.S. Military Aid To Israel As 50% Think Israel Is Committing Genocide In Gaza - Quinnipiac University Poll
Source: poll.qu.edu
Key Evidence
Reuters/Ipsos poll finds only 38% support for troop deployment in DC.
reuters.comreuters.comJust 38% of Americans support Trump's use of troops to police DC, Reuters/Ipsos...**.
Quinnipiac University poll shows majority opposition to National Guard deployment in DC.
poll.qu.edupoll.qu.edu8/27/25 - Majority Of Voters Oppose Deploying National Guard To D.C., Quinnipiac...**.
AP-NORC poll indicates majority approval for Trump's crime approach but does not confirm majority support for troop deployment specifically.
axios.comaxios.comMajority of Americans approve of Trump's approach on crime: AP-NORC poll
What the Evidence Shows
The claim that a majority of Americans approve Trump's deployment of National Guard troops to Washington, DC is contradicted by several recent polls from August 2025. Specifically:
A Reuters/Ipsos poll found that only 38% of Americans support Trump's use of troops to police DC, indicating a minority approval.reuters.comreuters.comJust 38% of Americans support Trump's use of troops to police DC, Reuters/Ipsos...
The Quinnipiac University National Poll similarly reports that a majority of voters oppose deploying the National Guard to DC, reinforcing the lack of majority support.poll.qu.edupoll.qu.edu8/27/25 - Majority Of Voters Oppose Deploying National Guard To D.C., Quinnipiac...
While an AP-NORC poll cited by Axios states that a majority of Americans approve of Trump's approach on crime generally, it does not explicitly confirm majority approval for the specific action of deploying National Guard troops to DC. This suggests some nuance: people may approve his crime policies overall but not necessarily the troop deployment.axios.comaxios.comMajority of Americans approve of Trump's approach on crime: AP-NORC poll
Additional sources provide context on the deployment and public reaction but do not indicate majority approval.theatlantic.comtheatlantic.comScenes from Trump's National Guard Deployment to D.C
bbc.combbc.comTrump deploys National Guard to Washington DC and pledges crime crackdown+1 more
The Reuters article on Republican governors sending National Guard troops reflects political support within certain factions but does not represent general public opinion.reuters.comreuters.comMore Republican governors send National Guard to Washington, backing Trump
In summary, multiple independent polls show that fewer than half of Americans approve the National Guard deployment to Washington, DC. The claim that a majority approve is therefore false based on current evidence.