Photo illustration: Sarah Grillo/Axios. Photo: Andrew Harnik/Getty Images President Trump flew to Beijing on Tuesday under some of the darkest economic clouds of his political career, leaving behind a country reeling from the cost of everyday life. Why it matters: The bottom is falling out on Trump's economic credibility — the central promise of his return to power. The inflation crisis that doomed his predecessor suggests he may not recover. A new CNN poll found that 70% of Americans disapprove of Trump's handling of the economy — a benchmark that never crossed 50% in his first term, even during the pandemic. 77% of Americans, including a majority of Republicans, say Trump's policies have driven up the cost of living in their own community. Driving the news: For now, Trump appears unconcerned, convinced that renewed inflation is temporary and that gas prices will plummet once he ends the Iran war.…