A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator. The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of an ignition coil or magneto.
President Trump has now fired 3 officials who were investigating his campaign or administration. Be the first to know about new stories from PowerPost. Sign up to follow, and weâll e-mail you free updates as theyâre published. Youâll receive free e-mail news updates each time a new story is published.
Trump has 24 official members of his Cabinet, and the Senate has so far confirmed 18 of them. In the month since Trump took office, two high-level hires withdrew from the confirmation process, and one senior adviser resigned. We'll keep this list updated as Trump announces the rest of the senior leadership positions, and the Senate confirms or rejects them. Here's what we know so far: