Why must the Republican Party nominate a 72-year-old grandfather from the Gulf Coast of Texas, until the past few months little known outside his district, as its 2008 standard-bearer? Very simple: the alternative is eight years of President Hillary Clinton. That ought to be enough to get the attention of every conservative who happens upon these words, so let me explain. It should come as no big revelation to anyone inside or outside of the Republican Party that the GOP has lost touch with its conservative roots. Massive deficit spending that would make Bill Clinton or Jimmy Carter blush; foreign...