During the last seven months of the campaign (April 10, 2012 to Nov. 6, 2012 >), the principals made a number of visits to Texas, mostly for fundraising (at least 13 fundraisers by the Republican principals and five by the Democratic principals; third party candidates Gary Johnson and Jill Stein also did fundraisers in the state).  Romney's and Biden's appearances at the NAACP Convention in Houston on July 11 and 12 generated a fair bit of news.  Green Party candidate Stein also made some news when she was arrested supporting Keystone XL protesters on Oct. 31. 

THE DEMOCRATS
President Barack Obama
August 31 - On the two-year anniversary of the end of the combat mission in Iraq holds a roundtable discussion with service-members and military families and speaks to troops at Fort Bliss, TX.

July 17
-Fundraising reception at the Henry B. Gonzalez Convention Center in San Antonio, TX (1,000 people, expected to raise $3 million). ($)
-Fundraiser at the home of attorney Mikal Watts in Dominion (northwest suburb), San Antonio, TX (75 people). ($)
-Fundraising reception at the Austin Music Hall in Austin, TX. ($)
-Fundraiser at the home of Tom Meredith, a former Dell executive, at the Four Seasons Residences in Austin, TX. ($)

First Lady Michelle Obama solo
May 14
-Joins U.S. Olympians, Paralympians and hopefuls to announce a commitment to get more American children active in support of her Let’s Move! initiative at the Hilton Anatole in Dallas, TX.
-Fundraising reception and dinner at the Hilton Dallas Lincoln Centre in Dallas, TX (425 people/$250 per person). ($)

Vice President Joe Biden
July 20 -Attends an event for the DSCC in Houston, TX. $cancelled due to the shooting in CO.

July 12  ...overnight July 11 in Houston, TX.
-Addresses the 103rd NAACP Annual Convention at the George R. Brown Convention Center in Houston, TX.

Jill Biden solo
July 12
-?Campaign event in Houston, TX (no details).

THE REPUBLICANS
Former Gov. Mitt Romney
September 18 - Mitt and Ann Romney fundraiser at the Hilton Anatole in Dallas, TX followed by private dinner. ($)

August 21
-Fundraising luncheon at the Houstonian in Houston, TX. ($)
-Fundraising photos and reception at the Petroleum Club in Midland, TX. ($)
-Fundraising dinner at the home of Bob and Marcia French in Midland, TX. ($)

July 11 - Addresses the 103rd Annual NAACP Convention in Houston, TX.

June 5-6
June 5
-Event on President Obama’s hostility to job creators at Southwest Office Systems in Fort Worth, TX.
-Fundraising event at Belo Mansion in Dallas, TX. ($)
-Fundraising dinner at the home of developer Harlan Crow in Highland Park, Dallas, TX. ($)
June 6
-Fundraising breakfast at the home of socialite/philanthropist Kit Moncrief in Fort Worth, TX. ($)
-Fundraising luncheon at the Marriott Rivercenter in San Antonio, TX. ($)
-Tele-town hall with NFIB members.
-Event at USAA headquarters (note USAA provides insurance and financial products and services to the military and their families; Romney had been scheduled to speak to USAA employees in late March, but postponed in order to receive the endorsement of former President George H.W. Bush).
-Fundraiser at the St. Regis Hotel in Houston, TX. ($)
-Fundraising dinner at the home of Jonathan Fairbanks in River Banks, Houston, TX. ($)
(source: details on Texas fundraisers reported by Wayne Slater, The Dallas Morning News).

Ann Romney solo
September 18 - Women's fundraising luncheon hosted by former First Lady Laura Bush at the Bushes home in Preston Hollow, TX. ($)
(followed by Mitt and Ann Romney fundraiser at the Hilton Anatole in Dallas, TX followed by private dinner. ($) see above)

May 17 - Evening fundraising reception with Anita Perry at the home of Julie and Ben Crenshaw (the golfer) in Austin, TX. ($)

Paul Ryan
September 25
            Flight to Hobby Airport in Houston, TX.
-Fundraising reception at the Hotel St. Regis, and fundraiser at a private residence in Houston, TX. ($)


Visits by third party candidates after their nominating conventions.
THE LIBERTARIANS
Gary Johnson
September 24
-Appearance at University of Texas at Austin, TX.

August 15-19
Wed. Aug. 15, 2012
-Fundraising dinner at The Free Man in Dallas, TX.
Thurs. Aug. 16, 2012
-Fundraising breakfast at the Park City Club in Dallas, TX.
-Happy hour and book signing at Pop's Safari Room in Fort Worth, TX.
-Dinner with supporters at Joe T. Garcia's in Fort Worth, TX.
Fri. Aug. 17, 2012
-Breakfast at Common Grounds Coffee House in Waco, TX.
-Whistlestop rally at Heritage Square in Waco, TX.
-Book signing at Brave New Books in Austin, TX.
-Dinner at Hill's Cafe in Austin, TX.
Sat. Aug. 18, 2012
-VIP fundraiser at the Hyatt Regency in San Antonio, TX
Sun. Aug. 19, 2012
-Fundraising reception at the Tracy Gee Community Center in Houston, TX.
-Open mic night at the Te House of Tea in Houston, TX.

Jim Gray
October 18, 2012
-Rally at Lone Star College-Kingwood in Houston, TX.
-Rally at Wheeler Bldg. at San Jacinto College-North Campus in Houston, TX.
-Meet and greet at The Refinery-Burgers & Whiskey in Houston, TX.


THE GREENS
Jill Stein
October 31
-Delivers supplies to activists at the "Tar Sands Blockade" in Winnsboro, TX; arrested on misdemeanor criminal trespass charge, taken to the Wood County jail in Quitman, TX, booked and released. 

October 4-7
Thurs. Oct. 4, 2012
-Speaks about her campaign and the Green New Deal at University of Houston Main Campus, University Center Satellite in Houston, TX.
-Speaks about her campaign and the Green New Deal in an evening appearance at Lone Star College's Student Conference Center in Kingwood, TX.
Fri. Oct. 5, 2012
-Speaks about the Keystone XL Pipeline at a press conference at Tranquility Park in Houston, TX.
-Speaks about her campaign and the Green New Deal at a rally at St. Stephen's Church in Houston, TX.
Sat. Oct. 6, 2012
-Speaks to Students for Socioeconomic Justice at VENUE in San Antonio, TX.
-Special guest speaker at Bexar County Green Party candidates' night fundraiser at VENUE.
Sun. Oct. 7, 2012
-Tours and meets with supporters at the Last Organic Outpost, a sustainable urban community farm in Houston, TX.
-House party fundraiser at the home of Lee and Hardy Loe in Houston, TX.