Several recent surveys from the Washington Post-Ipsos, Reuters, Quinnipiac, CNN and Gallup have all shown that Trump's support is now only 44% to 47%, lower than when he took office.
More importantly, the number of people who do not support him has now exceeded the number of supporters. In particular, an alarming sign appeared in the Washington Post-Ipsos survey: up to 39% of Americans expressed strong opposition to Mr. Trump, while only 27% showed enthusiastic support.
One of the reasons for Mr Trump's decline in support is that a series of policies he pursues do not seem to have received widespread consensus. From the closure of the US Agency for International Development (USAID) to the tax policy, most of his major initiatives have encountered opposition.
According to a survey by the Washington Post-Ipsos, the decision to close USAID was opposed by 59% compared to 38% in favor. Meanwhile, Mr. Trump's tariffs on imported steel and aluminum are not popular with the public, with 49% opposing compared to only 34% supporting.
Even mass deportation policies - a focus of Trump's agenda - have many challenges. Although 51% support deportation, when it comes into detail, the majority of Americans are surveyed against rigid forms of deportation, such as deporting immigrants without criminal records, those who have come to the US since they were young, or those with US citizens.
In addition to policy decisions, another factor that is at a disadvantage for Mr. Trump is the growing presence of billionaire Elon Musk in the administration. As a leader of the US Department of Government Efficiency (DOGE), Mr. Musk has pushed for many drastic cuts in the administrative apparatus, including the dismissal of a series of government employees.
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However, the public does not seem to agree with this approach. According to a CNN survey, up to 54% see Musk's involvement in the government as a bad thing, while only 28% see it as a positive thing. In particular, when asked about Musk's shutdown of federal programs that he said were unnecessary, up to 52% opposed and only 26% supported.
But perhaps the most worrying thing for Mr. Trump is not his personal decisions, but his economic problems - a field that was previously considered his strength. When he was president last term, he always considered the economy his victory card, but now, the number is no longer on his side.
According to the Washington Post-Ipsos, 53% of Americans are unhappy with Trump's way of managing the economy, while a Reuters survey showed that only 39% approved of how he handled the country's financial situation - a figure lower than at any time during his first term.