Nice try, but very wrong. Reagan signed into law one of the largest tax cuts in history in 1981 --
Soon after taking office in 1981, Reagan signed into law one of the largest tax cuts in the postwar period.
Taxes: What people forget about Reagan - Sep. 8, 2010
And, according to your chart, inflation was even higher in 1980 than 1981. So it's not like inflation "snuck up" on him. Thus, Reagan obviously was not concerned about inflation.
However, Reagan was concerned about the budget deficit, which is why...
Two bills passed in 1982 and 1984 together "constituted the biggest tax increase ever enacted during peacetime,"
You see, Ronald Reagan wasn't Grover Norquist's *****, like virtually every Repug in Congress today. Reagan would never have signed a "no new taxes pledge" like over 90% of the Repug cowards in Congress.
If Reagan were alive today, every idiot tea bagger on this messageboard would be calling him a RINO. It's absolutely ridiculous (and quite scary) how far to the right the Repug Party has moved in the past 20 years.
Unlike the idiot Repugs in Congress today, Reagan knew the budget deficit and national debt couldn't be reduced without closing tax loopholes for the rich...hence the 1982 and 1984 tax bills.