I’m not aware of the GHWB/Jeb visit .. could
you elaborate ?
It was during a very controversial debate going on (maybe health care), and GHW Bush and Jeb paid a visit to Obama at the White House. When they were asked by the press what they talked about/why the visit, I believe Bush #41 said they were “just in the neighborhood and decided to drop by for a visit". As far as I know, the real reason behind the visit was never disclosed. Sorry I can't be more explicit, and a search of the FR archives didn't turn up anything.
Here is a link to the article. http://www.sfgate.com/cgi-bin/blogs/nov05election/detail?blogid=14&entry_id=56360 It happened later than I remembered.
I think it was actually a visit by Jeb and the Sr Bush, about the Haiti thing supposedly. Not GW, but HW.