Over the years, the major parties’ election-year platforms have been regarded as Kabuki theater scripts for convention week. The presidential candidates blithely ignored them or openly dismissed the most extreme planks with a knowing wink as merely a gesture to pacify the noisiest activists in the party.

That cannot be said of the draft of the Republican platform circulating ahead of the convention in Tampa, Fla. The Republican Party has moved so far to the right that the extreme is now the mainstream. The mean-spirited and intolerant platform represents the face of Republican politics in 2012. And unless he makes changes, it is the current face of the shape-shifting Mitt Romney.

The draft document is more aggressive in its opposition to women’s reproductive rights and to gay rights than any in memory. It accuses President Obama and the federal judiciary of “an assault on the foundations of our society,” and calls for constitutional amendments banning both same-sex marriage and abortion.

In defending one of the last vestiges of officially sanctioned discrimination — restrictions on the rights of gay men and lesbians to marry — the platform relies on the idea that marriage between one man and one woman has for thousands of years “been entrusted with the rearing of children and the transmission of cultural values.”