After 15 terms in the House, Sheila Jackson Lee is barely hanging on in her primary

USA TODAY - For more and to sign up click here Mark P. Jones, Opinion Contributor Rep. Sheila Jackson Lee (D-Texas) is an institution in Houston — so much so that although the Houston area may have three female members of Congress, only Jackson Lee is commonly referred to as “the Congresswoman.” Since she first defeated incumbent Rep. Craig Washington in the 1994 Democratic primary, Jackson Lee has been easily…