Data mining plus streaming can target political ads household by household ... In prior elections, he said, he sent postcards introducing himself to voters in neighborhoods where he planned ...

Well-funded candidates use postcards because they are directly addressed to registered voters who have a record of regularly voting. Often political postcards are mailed to households so that the ...

You can't miss the yard signs, the postcards in your mailbox ... After months of the war on words from political groups, some voters are changing the channel on campaign ads.