Tax cuts do not necessarily "pay for themselves"

The situation in Kansas is detailed at Vox:

In 2012, Kansas governor Sam Brownback signed a massive tax cut into law, arguing that it would boost the state's economy. Eventually, he hoped to eliminate individual income taxes entirely...

Yet though Brownback is running for reelection this fall in a deep red state, he's trailed his Democratic challenger in 3 of the 4 most recent polls — and his marquee tax cut appears to be the main reason. Kansas is now hundreds of millions of dollars short in revenue collection, its job growth has lagged the rest of the nation, and Moody's has cut the state's bond rating...

After the cuts became law, it was undisputed that Kansas's revenue collections would fall. But some supply-side analysts, like economist Arthur Laffer, argued that increased economic growth would deliver more revenue that would help cushion this impact. Yet it's now clear that the revenue shortfalls are much worse than expected. "State general fund revenue is down over $700 million from last year," Duane Goossen, a former state budget director, told me. "That's a bigger drop than the state had in the whole three years of the recession"...

The declining revenues have necessitated extensive cuts in state education funding, according to the Center on Budget and Policy Priorities. Moody's cut of the state's bond rating this May was another embarrassment...

Brownback, like New Jersey Governor Chris Christie, has blamed President Obama for his state's growing red ink. "This is an undeniable result of President Obama's failed economic policies of increasing taxes and overregulation," Brownback's revenue secretary Nick Jordan said.