He is not thought to identify as Jewish, but during Israel’s conflict in Gaza in 2014 he tweeted: “My mothers [sic] family were Jewish but what's happening in Palestine is #NotInMyName #Gaza #StoptheWar.”
He later added: "My Jewish roots are deeply important to me."
The year after his election Mr Trickett traveled to Israel with Labour Friends of Israel.
Lumb, of South Elmsall, will be sentenced on March 3. He is believed to have been a former British National Party activist and has also been linked to the English Defence League. The incident involving Mr Tickett took place in January last year.
The Guardian reported that Mr Trickett was said to have been “shocked and shaken” by the episode and had “not experienced rage like it in his life”.
A Community Security Trust spokesman said: “We welcome the pursuit of this case and hope that it helps send a message to others who behave in this way.”
