Matt Stiles — Click for higher resolution staff photos

Matt Stiles covers government and politics with a focus on data journalism, and he oversees and helps develop the Tribune's library of web applications and interactives. Previously, he was a government reporter at the Houston Chronicle. While there, he won the newspaper's Jesse Award for service journalism and beat reporting and was its reporter of the year in 2007. Before joining the Chronicle, Stiles worked as a reporter for nearly four years at The Dallas Morning News.

Recent Contributions

Jacob Villanueva

Interactive: 30-Day Cash on Hand Reports

Texas political candidates and committees filed reports October 4 with the Texas Ethics Commission listing the total amount of cash they have to spend ahead of the Nov. 2 election. Use this table to sort through or download those records. Full Story 
Illustration by Todd Wiseman

Show Us the Money

With a month to go before Election Day, challengers in fifteen House races outraised incumbents during the most recent reporting period, according to the most recent filings with the Texas Ethics Commission. In eight of those races, the challengers led in combined spending and saving, a rough measure of each campaign's financial strength.

Full Story 

Interactive: Read, Watch Texas Political Ads

The Tribune has posted more than 70 campaign spots in the 'Ads Infinitum' blog. Use this interactive to filter them by political party, candidate and election type, and click the ads' title to watch it and read a transcript. Full Story 

Interactive: 30-Day Campaign Finance Reports

On October 4, candidates in Texas political races filed reports itemizing how they financed their campaigns from July 1 to Sept. 23. The data show each candidate's totals for fundraising, spending, loans and, perhaps most important, cash left to spend. Full Story 

Interactive: Concealed Handgun Licenses By County

The Tribune analyzed Texas Department of Public Safety data on concealed handgun license issuance during 2009, creating thematic maps that show a county-by-county breakdown of the total number of licenses issued and the per-capita rate. The latter figure is a more accurate measure for the proportion of residents who received licenses. Darker colors represent higher totals and rates. Full Story 
Edward A. Ornelas/San Antonio Express-News

An Obama Gun Rush?

In the two years since Barack Obama was elected president, many Texas gun owners — afraid of losing their Second Amendment rights — have stocked up on weapons and ammo. Texans have also sought a record number of concealed handgun licenses. Coincidence?

Full Story 
Edward A. Ornelas\The San Antonio Express-News

Crime, Guns and Money

When the state's concealed handgun statute was approved 15 years ago, lawmakers argued it would help citizens defend themselves — but residents of low-income, largely Democratic nieghborhoods aren't applying for gun permits as often as those in wealthier, more-conservative areas, according to a Texas Tribune/San Antonio Express-News analysis.

Full Story 

A Place to Shoot

In a pattern that's playing out in San Antonio and other major metro areas in Texas, residents in low-income neighborhoods aren't taking advantage of the state's concealed-carry law as often as residents living in wealthier, more conservative areas. Full Story 
Illustration by Todd Wiseman

Search: Texas Prison Inmates, Units

Find records on each of the more than 160,000 inmates in Texas prisons, including their names, crimes, hometowns, height, weight and gender, the counties in which they were convicted and their sentencing dates.

Full Story 
Illustration by Todd Wiseman/Kiet Callies

Interactive: Government Unlimited

Legislative filings increased in the Texas House and Senate by 70 percent from 1991 to 2009, records show, and the number of bills and resolutions passed by both chambers climbed at a higher rate. Resolutions alone numbered about 4,000 last session, or more than half of all legislation. Explore our interactive graphics.

Full Story 

Interactive: Texas Legislation History

This interactive chart visualizes the roughly 90,000 bills and resolutions introduced by members of the Texas House and Texas Senate since 1991. Click through the tabs to see visualizations of legislation that introduced, passed by both chambers or vetoed by governors Ann Richards, George W. Bush and Rick Perry. The colors in the charts represents the various types of legislation. Full Story 

Data: Texas' Most Congested Roads

The Texas Department of Transportation ranked Texas' 100 most-congested roads using traffic data collected during 2009. Use this table to sort through those records. Full Story 
Illustration by Todd Wiseman

Data App: Regents Who Give

Over the past decade, the men and women chosen by Rick Perry to serve as regents of the state's universities have given his campaigns a total of at least $5.8 million, according to a Texas Tribune analysis.

Full Story 

Interactive: Gov. Perry's Regent Donors

Texas governors in both political parties over the years have appointed university regents who also were generous political donors. Gov. Rick Perry, who took office in December 2000, is no different. More than half the people he's selected to lead the state's public universities have contributed to his political campaigns — some more generously than others. Use this interactive table to explore those donations. Full Story