by Ivan Couronne PITTSBURGH, United States (AFP) — Hillary Clinton took a bus tour across the US “rust belt” region this weekend in a quest to win over white, working class voters who tend to support populist Republican Donald Trump. With her husband ex-president Bill Clinton in tow, the former first lady, top diplomat, ex-senator and now Democratic presidential candidate took her seat on a blue bus that meandered over 1,000 kilometers (600 miles) from […]