Portman's Ohio campaign a sharp contrast to Trump's

Republicans say Trump needs to take a page from Portman's playbook, and they worry that Trump's flyby approach to one of the most important states on the electoral map won't give him the edge he needs over Democrat Hillary Clinton, who already has a strong Ohio operation.

[...] he must win some places where 2012 Republican nominee Mitt Romney lost, and he has pointed to the upper Midwest, where his tough talk on trade resonates with some blue-collar workers.

Ohio, worth 18 electoral votes, has been carried by every winning candidate for president since 1964, and by a margin of less than 3 percentage points in the past four White House elections.

Portman has committed $15 million from his campaign to television advertising, much of it addressing heroin addiction, a big concern for swing-voting suburban women, but also the ailing coal industry, a priority in the southeast part of the state.

State GOP Chairman Matt Borges touts the combined RNC and state party effort and contends Republicans who were in "mourning" over Kasich's drop from the race in May are beginning to coalesce around Trump.

Reports show dozens in Ohio dying of heroin overdoses every week in the suburbs of its numerous metro areas, and workers in Ohio's southeast worry about the future of the coal industry, in light of higher environmental standards.

During his one visit to Ohio since clinching the nomination, Trump pledged to defeat the Islamic State group responsible for deadly attacks in the United States and abroad.