http://www.onwar.com/chrono/1943/jan1943/f12jan43.htm
Red Army Shatters Hungarian Defenses
Tuesday, January 12, 1943 www.onwar.com
On the Eastern Front... The Soviet Voronezh Front (General Golikov) and Bryansk Front (General Reiter) attack the Hungarian 2nd Army and the German 2nd Army, respectively. The Hungarian defenses are quickly shattered. Soviet forces breaking through drive toward Kharkov. To the south, Army Group Don (Field Marshal Manstein) is also being pressured by Soviet attacks aimed at reaching Rostov and cutting off German Army Group A in the Caucasus. The Soviet breakthrough to the north represents a threat to the position of Manstein’s army group.
In the Aleutian Islands... Amchitka Island is occupied by a small US force led by General Jones. The destroyer Warden is lost in an accident.
In New Guinea... Australian infantry and tanks attack Japanese positions north and west of Gona.
"Of the original seven, there remain the 33,000 ton Saratoga, the small Ranger, somewhat on the wasp pattern, though smaller and less speedy, and the big Enterprise, a sister ship of the Yorktown, sunk at Midway."
In fact, five of eight US carriers were sunk in 1942, leaving only Saratoga and Enterprise in the Pacific, until Essex, commissioned on December 31, 1942.
Meanwhile, Japanese also suffered losses.
Of eight fleet carriers available in 1942, four were sunk at Midway, leaving Shokaku, Zuikaku and the new Junyo and Hiryo.
The Japanese also had seven light and escort carriers, of which two were sunk, leaving five.
So, as of "today", the US has Saratoga, Enterprise and Essex, versus four Japanese fleet and five light or escort carriers.
Yes, Baldwin is right in implying the tide will turn, but as of January 1943, these numbers still don't say the tide has already turned.