Why did texas government collapse at the end of the civil war

The U. S. state of Texas declared its secession from the United States of America on February 1, 1861, and joined the Confederate States on March 2, 1861, after it replaced its governor, Sam Houston, when he refused to take an oath of allegiance to the Confederacy.

The hardship faced by Texas and the blockage of the Major port at Galveston by the union during and After the war

Explanation:

The Government of Texas seceded away from the Union in 1861 to join other southern states to form a confederate. and after the civil war the Texas people suffered a lot of hardship due to the wide effect of the war on southern states following the defeat of the southern states. although not much fighting took place in Texas the effect of the war was massively felt and one of the effects was the Blockage of the Major port at Galveston by the Union during the civil war which halted traffic and brought with it untold hardship. after the defeat of the confederate states, Texas was forced to rejoin the union in 1870 but fully rejoined in 1901 with a new constitution different fro what they had while still with confederate states. this constitution was later approved in 1903.