Demonstrators blocked a highway in Arizona as Donald Trump prepared to theatre a convene nearby Phoenix.
The front-runner in a competition to be a Republicans’ US presidential claimant addressed supporters in Fountain Hills.
Some 50 protesters caused trade jams as they hold adult posters with slogans such as “Dump Trump”.
The billionaire’s rallies have been injured by a array of new incidents. A assembly in Chicago a week ago was cancelled after protests.
Hundreds of demonstrators had collected during a University of Illinois and fighting pennyless out between supporters and protesters in a auditorium where Mr Trump was due to speak.
Criticism over aroused Trump rallies
In a latest disturbance, protesters marched down a highway heading to Fountain Hills. Police done several arrests before a demonstrators dispersed.
Some, heavily outnumbered by Trump supporters, done their approach to a corner of a convene venue in Fountain Park.
Speaking after during a rally, Mr Trump described a protesters as “disgraceful” and pronounced they were “representing [Democratic front-runner] Hillary Clinton”.
In Mr Trump’s home city of New York, several hundred protesters collected outward Trump Tower in Manhattan.
Some chanted slogans accusing him of racism, sexism and being anti-gay. The entertainment enclosed immigrants’ rights activists and socialists.
Several protesters carrying “Vote Trump” placards were also present, explaining that they wanted to denote their right to support Mr Trump.
On 12 March, a male attempted to rush Mr Trump as he spoke on theatre in Ohio though was prevented from doing so by Secret Service agents.
A Trump believer was also charged with attack after mixed videos showed him punching a protester during a debate convene in North Carolina.
Mr Trump has been indicted of formulating tragedy by divisive rhetoric, though he denies regulating hatred debate or personification any partial in fostering division.
The Arizona convene was a Republican hopeful’s second revisit to a state in 3 months. A primary takes place there on 22 March.
Mr Trump and Mrs Clinton strengthened their leads in a array of primaries final Tuesday.