 Trump's left sat his young running mate, 39-year-old Ohio Senator J.D. Vance, who will address the delegates on Wednesday. Stephen Portnoy, ABC News at the Republican Convention in Milwaukee. The economy and inflation to get a lot of focus this week. One of the things the former president wants to do over the next couple of days there at the RNC is highlight that he can do a better job than what we've seen under President Biden when it comes to the cost of everyday prices.