Republican Senator Ted Cruz from the US state of Texas is about to announce his plans to run for the American presidency, according to an aide, reported Reuters.<br /><br /> Cruz would be the first major figure to announce his candidacy for the 2016 election. <br /><br /> The 44-year-old has built a reputation as a stubborn advocate for conservative principals and is currently favoured by 8 percent of Republicans.<br /><br /> Former Florida Governor Jeb Bush, brother of George W. Bush, leads the polls at 21 percent.<br /><br /> Other potential Republican candidates are former Texas Governor Rick Perry and Wisconsin Governor Scott Walker.<br /><br /> Hillary Clinton is widely considered the Democratic campaign front-runner, although she has not officially declared her candidacy.<br /><br /> Clinton has come under pressure for using a private email address rather than a government one during her time as top US diplomat from 2009
