The White House's principal economic adviser has thrown his weight behind the trillion-dollar direct payment scheme, though bipartisan indifference in Congress and market scrutiny over its fiscal and inflationary consequences continue to cloud the proposal's outlook.

President Trump's vision of mailing a $5,000 cheque to every adult American citizen has drawn widespread scepticism amid historically high budget deficits.

Kevin Hassett, director of the National Economic Council, defended the initiative on Thursday, characterising it as a "serious proposal" that "can be achieved in a fiscally responsible way." However, Republican leaders on Capitol Hill have offered a generally tepid response, and analysts remain doubtful about the plan's prospects of becoming law.

Based on current adult population figures, the programme would generate over one trillion dollars in fresh expenditure, a potentially heavy lift at a time when the nation's federal debt burden sits perilously close to record levels.

Hassett acknowledged that specific offsetting measures would require "negotiations with Congress," and noted that potential pathways include utilising the budget reconciliation process to bypass the need for minority-party votes in both legislative chambers.

Turning to monetary policy, Hassett hinted that if the Federal Reserve were to implement a substantial rate hike next week, "the president would have something to say," a statement that has drawn attention to the evolving dynamic between the White House and the central bank.

Analysts: Fiscal Cost and Inflation Pressures Render the Proposal Impractical

Wall Street remains broadly unconvinced about the initiative's viability. According to Bloomberg, Evercore ISI analysts stated plainly in a Friday report that "Trump's plan for $5,000 cheques to all Americans, conditional on Republicans winning the midterms, is simply unworkable in Congress due to its enormous fiscal cost and inflationary impact."

Senior congressional Republicans have responded with similar restraint. Analysts note that with limited fiscal headroom and inflationary pressures not yet fully abated, a direct spending programme exceeding one trillion dollars faces substantial internal opposition from within the party.

Hassett sought to alleviate concerns over fiscal discipline, underscoring that economic growth and wealth accumulation provide a foundation for returning dividends to citizens, though he stopped short of detailing any specific financing arrangements.

He indicated that the budget reconciliation mechanism stands as one potential legislative route, enabling the congressional majority to advance fiscal legislation without securing minority support.

Rising Inflation Data Prompts White House Signal on Fed Moves

On monetary policy matters, Hassett acknowledged on Friday that the August Consumer Price Index indicated a pick-up in inflation, though he stressed that the three-month rolling trend still points to a slowdown, an apparent effort to soothe market sentiment.

When pressed on whether the Federal Reserve might respond with aggressive rate action at its upcoming meeting, Hassett offered a pointed remark: "I suspect that if the Fed takes dramatic action, the president will have something to say." The comment could signal potential White House pressure on the central bank's independence.

Investors now await the Federal Reserve's policy decision next week, with oscillating inflation readings and statements from the White House jointly contributing to prevailing market uncertainty.