CHICAGO: Hillary Rodham Clinton’s presidential campaign will center on boosting economic security while casting her as a “tenacious fighter” able to get results, two advisers said ahead of her planned campaign launch on Sunday.

The former first lady, US senator and secretary of state is expected to make her 2016 effort official with an online video followed by small events with residents of Iowa and other early-voting states over the days ahead. The campaign’s opening strategy was described ahead of the announcement by two senior advisers who requested anonymity to discuss her plans.

If Clinton’s strategy sounds familiar, it might be because President Barack Obama framed the choice for voters in 2012 as between Democrats focused on the middle class and Republicans wanting to protect the wealthy and return to policies that led to the Great Recession.

Clinton intends to sell herself as being able to work with Congress, businesses and world leaders, the advisers said Saturday. That approach could be perceived as a critique of Obama, who has largely been unable to fulfill his pledge to end Washington’s intense partisanship and found much of his presidency stymied by gridlock with Congress.

Clinton will enter the race as the overwhelming favorite for her party’s nomination. Still, her team has said her early strategy is designed to avoid appearing to take that nomination for granted. She will contend with Republicans in Congress who are investigating her use of a private e-mail account and server during her four-year tenure as secretary of state.

By campaigning heavily in the early-voting states, which influence the rest of the state-by-state battle for party nominations, Clinton hopes to avoid making the same stumbles she did in 2008, when she entered the race as a US senator and a heavy favorite only to be upset by Barack Obama in Iowa’s lead-off caucuses.

Obama, speaking at a news conference Saturday in Panama City, said he thinks Clinton “would be an excellent president.”

Should she win the nomination, Clinton would face the winner of a crowded Republican primary field that could feature as many as two dozen candidates. Former Florida Gov. Jeb Bush, the brother and son of former presidents, is likely to run, setting up a potential Clinton-Bush showdown if he manages to win the Republican nomination.

Republican Sens. Rand Paul, a favorite among libertarians, and Ted Cruz, a champion of the conservative tea party movement, have already entered the Republican race. Cuban-American Sen. Marco Rubio of Florida is expected to announce his bid to be the first Hispanic president on Monday.

In New York on Saturday, at the final event put on by “Ready for Hillary,” a group not connected with her campaign that’s worked for the past few years to stoke excitement for it, enthusiastic supporters joined elected officials and local party leaders to celebrate the launch to come.

Ahead of the expected announcement, Republicans tried to link Clinton to Obama, a regular focus of Republican criticism.