Although the weather and track breakup in 1986 and 1987 was not as intense as it had been in 1984 and 1985, Detroit was removed from the Formula One schedule after after F1's governing body FISA declared the temporary pit area wasn't up to the required standard. FISA and FOCA wanted a permanent pits facility, but the City of Detroit was not willing to spend the money to build such facilities. The 1988 race was a very hot race, and the circuit broke up very badly – this was the worst state the circuit had ever been in – even worse than 1984 and 1985. Such track problems often occurred, but the track disintegration was worse that year due to the intense heat and humidity. The race had always been the hardest race of the year, terribly difficult on the car and driver – but by now, the race had worn out its welcome and it had become downright unpleasant. The race was already unpopular among drivers, and as a result, a number of drivers after the Grand Prix that year had finally had enough and they became outspoken with their dislike of the event. For the season, it was originally planned to move the F1 Grand Prix to a new circuit at Belle Isle. However, an agreement could not be established, and the only American Grand Prix of the year moved to Phoenix for 1989–1991, which was known as the United States Grand Prix, the first official USGP to be run since the 1980 race at Watkins Glen in New York. Upon the departure of F1, the Detroit race was replaced by the CART-sanctioned Detroit Indy Grand Prix which in 1992 moved to the Belle Isle circuit originally proposed for F1.