Setback for Clinton as rival Sanders takes lead in Iowa and NH

US Democratic frontrunner Hillary Clinton suffered a major setback in her presidential campaign as her rival Bernie Sanders took lead in the latest opinion polls in two key primary States of Iowa and New Hampshire.
Winning in these two early primary States - in less than a month from now - is considered to be the key for an effective presidential campaign, but there has been past trends wherein candidates have won the Democratic Party's nominations even in setbacks in first few Sates.
In New Hampshire, Sanders, 74, leads Clinton, 69, by 14 points, according to latest poll released by Monmouth University.

However, as per realclearpolitics.Com - which aggregates all the recent major polls - Sanders lead in New Hampshire is 4.3 points.
Sanders has also taken lead over Clinton in Iowa polls.
According to Quinnipiac University polls Sanders has support of 49 per cent likely caucus goers against 44 for Clinton.

This is a significant drop for Clinton as last month she was up by 11 per cent.
This is Clinton's second attempt at US presidential elections.
In her first attempt in 2008, she was defeated in the Democratic Party primaries by the outgoing President Barack Obama.
If elected she would be the first woman president of the United States.