WASHINGTON (MarketWatch) — Here are five stories you should be reading Wednesday morning.

Romney redux:Mitt Romney typically insists in public that he won’t run again for president. But Reuters reports friends and former aides say the 2012 Republican nominee could seek the nomination if a series of events plays out in his favor. Chief among them: that no single powerhouse emerges from what’s expected to be a crowded field of Republicans vying for the GOP’s lead. “Mitt’s a smart enough guy to see that there are potential opportunities that are created by whatever happens to other people in the race,” says a former aide to Romney.

How Hillary can win: Over at Politico, columnist Roger Simon is assuming Hillary Clinton wins the Democratic nomination and offers four things she can do to win the White House. First: announce she’ll serve only one term as president. The same one-term pledge should go for her running mate, whoever she chooses, Simon writes. She shouldn’t be afraid to choose a woman as her vice-presidential candidate, he believes. Finally, Clinton should distance herself from President Barack Obama, not so much on issues as on attitude. Simon writes a senior Democrat already has a theme for her: “I can work with people.”

Laboring to the polls:Richard Trumka, the head of the AFL-CIO, says voter turnout is going to be the deciding factor in the midterm elections and “we still have a lot of work to do.” Trumka has spent the last month traveling the nation to mobilize voters on behalf of union-endorsed candidates, largely Democrats. As The Wall Street Journal writes, Trumka says labor is facing apathy from prospective voters who wonder why they should care about this election. He tells them people can actually change the economy by voting for candidates unions say support policies that will strengthen the middle class.

ISIS and Arkansas: Republican Senate candidate Tom Cotton has opened a new line of attack against Democrat Sen. Mark Pryor in their Arkansas race: that Pryor is weak on national security, and that extremists from the group ISIS are working with Mexican drug cartels to infiltrate the U.S. border and attack Arkansas. Talking Points Memo has more about Cotton’s theory, and notes Obama administration officials have said there is no intelligence to suggest ISIS members are operating in Mexico near the border.

White House shakeup?President Obama may be looking to shake up his White House team after the midterm elections, writes David Ignatius in the Washington Post. The columnist says Obama appears to be interested in a talent infusion that would add depth and expertise. He says a recent example is his appointment of retired Gen. John Allen as special envoy for Iraq and Syria. More top-level hires may be coming in an effort to widen the administration’s bandwidth, as Ignatius puts it.