US Democratic hopeful Bernie Sanders has hit back after Republican front-runner Donald Trump said he had sent protesters to disrupt his rallies.
Donald Trump trains his fire on the protesters disrupting his rallies, branding them "thugs" and extremists, as White House rivals warned the Republican's heated rhetoric was dangerously fanning tensions.
US Democratic hopeful Bernie Sanders has hit back after Republican front-runner Donald Trump said he had sent protesters to disrupt his rallies.
Donald Trump trains his fire on the protesters disrupting his rallies, branding them "thugs" and extremists, as White House rivals warned the Republican's heated rhetoric was dangerously fanning tensions.
