<p>US Senator John F. Kerry is facing a serious challenge from Democratic rival Howard Dean in Massachusetts, according to a Boston Globe/WBZ-TV survey of likely voters in the state's presidential primary.</p>
<p>The poll shows Dean getting 27 percent of the 400 likely Democratic primary voters, with Kerry receiving 24 percent. The two are far ahead of seven other candidates, with retired Army General Wesley K. Clark running a distant third with 6 percent.</p>