Despite the frenzied excitement in some rightwing media circles and their audience, I wouldn't get overly excited about Tony Bobulinski. This article in Politico gives a decent overview of the situation.
https://www.politico.com/news/2020/10/23/Trump's sideshow fizzles outExcerpts Below"One of the hallmarks of the Trump era has been his penchant for pushing fringe characters peddling dubious stories into the center ring of our political circus. In the past he has been an effective ringmaster. Whether it’s retweeting conspiracy theorists (that guy who recently alleged Osama bin Laden was still alive), elevating people who believe drinking water is tainted with Prozac that is causing shrimp to commit suicide (Alex Jones), or putting fringe GOP operatives banished from presidential politics on the payroll (Roger Stone), Trump has often delighted — and benefited politically — from turning the sideshow into the main show."
"But so far the Bobulinski allegations seem like bubkes. At 10:47, minutes after the debate ended, the Wall Street Journal, part of the same media empire as Fox News and the Post, reported, “Text messages and emails related to the venture that were provided to the Journal by Mr. Bobulinski, mainly from the spring and summer of 2017, don’t show either Hunter Biden or James Biden” — the former vice president’s brother — “discussing a role for Joe Biden in the venture.”
"Even if Bobulinski is telling the truth, that Joe Biden knew about the China enterprise, it’s not clear what the scandal is — he was a private citizen at the time and not yet running for president. Trump has elevated an unsubstantiated assertion that Biden had knowledge about his son’s legal and failed business venture to a “crime” for which he “should be in jail.” To put in context how absurd this allegation is, one of the first things George W. Bush did after he left the White House was deliver a paid speech in China. Somehow he remains at large."
"Similarly, the Hunter bombshell has so far been defused because Trump’s exaggerations and over-the-top allegations bear no resemblance to the available facts."
"It makes you wonder what Trump could have accomplished this year against Biden if he had focused on what’s front and center to voters and didn’t get so distracted and preoccupied by the sideshow."