He was a devoted citizen of the United States, and, though he took no active interest in politics, was a steady supporter of the Whig party. Henry Clay was his personal friend, and his last donation to any political cause was a subscription of fifteen hundred dollars to aid the election of his old friend to the Presidency. About the year 1830, Mr. Astor, now the possessor of millions, began to withdraw from active business, confining his efforts chiefly to such investments as the management of his immense estate made necessary. He now put into execution an enterprise which he had long cherished. When a poor stranger in the city, he had once stopped in Broadway to notice a row of buildings which had just been erected, and which were considered the finest in the street, and had then made a vow that he would one day build a larger and finer house than any in Broadway. He now set to work to carry out the plan he had cherished ever since. He owned the entire block on Broadway, between Vesey and Barclay streets, with the exception of one house, which was the property of a Mr. Coster, a merchant who had amassed a large fortune and retired from business. Mr. Astor made him many offers for his house, but the old gentleman was unwilling to remove. Mr. Astor offered him the full value of his house, which was thirty thousand dollars, and increased the bid to forty thousand, but Mr. Coster was obstinate. At length Mr. Astor, in despair, was compelled to reveal his plan to his neighbor. "I want to build a hotel," said he. "I have got all the other lots. Now name your own price." Mr. Coster replied that he would sell for sixty thousand dollars if his wife would consent, and that Mr. Astor could see her the next morning. Mr. Astor was punctual to the appointment, and his offer was accepted by the good lady, who said to him, condescendingly, "I don't want to sell the house, but we are such old friends that I am willing for your sake." Mr. Astor used to remark with great glee that any one could afford to exhibit such condescension after receiving double the value of a piece of property. Having got possession of the entire block, he commenced the demolition of the old buildings, and on their site reared the Astor House, then the largest and most elegant hotel in the country. This building, when completed, he gave to his eldest son, William B. Astor.