Mmmmmmm not sure this is anything but a pre election media opportunity to present the guy in a good light with the real voters. I would be more impressed if it was post election invite by the Mayor, whoever HE is, to hear of issues that he could help the foreign community with.
Does not always pay to kiss off other hopeful candidates and their paties in an election period and into the future. It does get remembered, especially when others win now or in the future. My advice is to not be too partisan at this pre election period.