It has been pointed out that any candidate for President who is ahead in public opinion polls in the second year of a Presidential term has never been elected President, since the age of polling became active after World War II.
If it was, Thomas E. Dewey, Robert Taft, George Romney, Edmund Muskie, Ted Kennedy, Mario Cuomo, Al Gore, and Hillary Clinton would have served in the Presidency after elections in 1948, 1952, 1968, 1972, 1980, 1992, 2000, and 2008.
Instead, we had Harry Truman, Dwight D. Eisenhower, Richard Nixon, Ronald Reagan, Bill Clinton, George W. Bush, and Barack Obama!
So now it is clear that the inevitability of Hillary Clinton as our 45th President is far from certain, due to various factors!
Hillary Clinton is seen as too close to Wall Street billionaires and millionaires, and too close friendships with major corporations, while mouthing the support of overcoming income inequities.
Hillary Clinton is seen as a “hawk” in foreign policy, even a neoconservative to many, having backed the Iraq War and coming across as much more hardline than many Democrats on recent events in the Middle East and elsewhere.
Hillary Clinton has supported the Patriot Act and National Security Agency surveillance and spying.
Hillary Clinton has not been a strong supporter on environmental issues, particularly in supporting fracking.
Hillary Clinton has come across as secretive, and now has the new scandal of having all emails being private, rather than on government emails while Secretary of State for four years.
Hillary Clinton has also allowed foreign contributions to the Clinton Foundation, including Arab countries in the Middle East, not a wise or thoughtful idea.
Hillary Clinton has the history of earlier questioning of her ethics, both as First Lady and as Senator and Secretary of State, and many see her marriage to Bill Clinton as a sham, designed to promote her insatiable desire to be the first woman President of the United States.