Texas Rep. Sheila Jackson Lee, who served her Houston district for nearly 3 decades, has died at the age of 74, CNN reports. Lee shared publicly in June she had been diagnosed with pancreatic cancer. In a statement, Lee’s family called her “A fierce champion of the people,” who was “simply known as ‘Congresswoman’ by her constituents in recognition of her near-ubiquitous presence and service to their daily lives for more than 30 years.” “A local, national, and international humanitarian, she was acknowledged worldwide for her courageous fights for racial justice, criminal justice, and human ri…